Home / 13,074.48-18,042.66-7,106.31

Finding the Fourth Proportional to 13,074.48, 18,042.66 and 7,106.31

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Solution

The fourth proportional to 13,074.48, 18,042.66 and 7,106.31 is: 9,806.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,074.48 : 18,042.66 = 7,106.31 : x
  2. Step 2: Convert to fraction form
    13,074.48/18,042.66 = 7,106.31/x
  3. Step 3: Cross multiply
    13,074.48x = 18,042.66 × 7,106.31
  4. Step 4: Simplify right side
    13,074.48x = 128,216,735.18
  5. Step 5: Solve for x
    x = 128,216,735.18/13,074.48
  6. Step 6: Final answer
    x = 9,806.64

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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.