Home / 13,891.29-20,839.09-4,655.13

Finding the Fourth Proportional to 13,891.29, 20,839.09 and 4,655.13

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Solution

The fourth proportional to 13,891.29, 20,839.09 and 4,655.13 is: 6,983.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891.29 : 20,839.09 = 4,655.13 : x
  2. Step 2: Convert to fraction form
    13,891.29/20,839.09 = 4,655.13/x
  3. Step 3: Cross multiply
    13,891.29x = 20,839.09 × 4,655.13
  4. Step 4: Simplify right side
    13,891.29x = 97,008,673.03
  5. Step 5: Solve for x
    x = 97,008,673.03/13,891.29
  6. Step 6: Final answer
    x = 6,983.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.