Home / 13,607.09-18,761.10-9,349.73

Finding the Fourth Proportional to 13,607.09, 18,761.10 and 9,349.73

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Solution

The fourth proportional to 13,607.09, 18,761.10 and 9,349.73 is: 12,891.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,607.09 : 18,761.10 = 9,349.73 : x
  2. Step 2: Convert to fraction form
    13,607.09/18,761.10 = 9,349.73/x
  3. Step 3: Cross multiply
    13,607.09x = 18,761.10 × 9,349.73
  4. Step 4: Simplify right side
    13,607.09x = 175,411,125.70
  5. Step 5: Solve for x
    x = 175,411,125.70/13,607.09
  6. Step 6: Final answer
    x = 12,891.16

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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.