Home / 13,074.72-18,042.75-7,106.19

Finding the Fourth Proportional to 13,074.72, 18,042.75 and 7,106.19

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Solution

The fourth proportional to 13,074.72, 18,042.75 and 7,106.19 is: 9,806.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,074.72 : 18,042.75 = 7,106.19 : x
  2. Step 2: Convert to fraction form
    13,074.72/18,042.75 = 7,106.19/x
  3. Step 3: Cross multiply
    13,074.72x = 18,042.75 × 7,106.19
  4. Step 4: Simplify right side
    13,074.72x = 128,215,209.62
  5. Step 5: Solve for x
    x = 128,215,209.62/13,074.72
  6. Step 6: Final answer
    x = 9,806.34

Related Problems

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Half scale
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Double scale
Find fourth proportional to 13,075.72, 18,044.13 and 7,107.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.