Home / 13,075.04-18,043.64-7,106.76

Finding the Fourth Proportional to 13,075.04, 18,043.64 and 7,106.76

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Solution

The fourth proportional to 13,075.04, 18,043.64 and 7,106.76 is: 9,807.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,075.04 : 18,043.64 = 7,106.76 : x
  2. Step 2: Convert to fraction form
    13,075.04/18,043.64 = 7,106.76/x
  3. Step 3: Cross multiply
    13,075.04x = 18,043.64 × 7,106.76
  4. Step 4: Simplify right side
    13,075.04x = 128,231,819.01
  5. Step 5: Solve for x
    x = 128,231,819.01/13,075.04
  6. Step 6: Final answer
    x = 9,807.37

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Half scale
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Double scale
Find fourth proportional to 13,076.04, 18,045.02 and 7,107.76
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.