Home / 15,135.13-20,896.77-9,472.17

Finding the Fourth Proportional to 15,135.13, 20,896.77 and 9,472.17

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Solution

The fourth proportional to 15,135.13, 20,896.77 and 9,472.17 is: 13,078.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,135.13 : 20,896.77 = 9,472.17 : x
  2. Step 2: Convert to fraction form
    15,135.13/20,896.77 = 9,472.17/x
  3. Step 3: Cross multiply
    15,135.13x = 20,896.77 × 9,472.17
  4. Step 4: Simplify right side
    15,135.13x = 197,937,757.89
  5. Step 5: Solve for x
    x = 197,937,757.89/15,135.13
  6. Step 6: Final answer
    x = 13,078.03

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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.