Home / 13,839.27-19,098.12-7,551.66

Finding the Fourth Proportional to 13,839.27, 19,098.12 and 7,551.66

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Solution

The fourth proportional to 13,839.27, 19,098.12 and 7,551.66 is: 10,421.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,839.27 : 19,098.12 = 7,551.66 : x
  2. Step 2: Convert to fraction form
    13,839.27/19,098.12 = 7,551.66/x
  3. Step 3: Cross multiply
    13,839.27x = 19,098.12 × 7,551.66
  4. Step 4: Simplify right side
    13,839.27x = 144,222,508.88
  5. Step 5: Solve for x
    x = 144,222,508.88/13,839.27
  6. Step 6: Final answer
    x = 10,421.25

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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.