Home / 13,654.28-18,843.26-7,686.17

Finding the Fourth Proportional to 13,654.28, 18,843.26 and 7,686.17

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Solution

The fourth proportional to 13,654.28, 18,843.26 and 7,686.17 is: 10,607.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,654.28 : 18,843.26 = 7,686.17 : x
  2. Step 2: Convert to fraction form
    13,654.28/18,843.26 = 7,686.17/x
  3. Step 3: Cross multiply
    13,654.28x = 18,843.26 × 7,686.17
  4. Step 4: Simplify right side
    13,654.28x = 144,832,454.99
  5. Step 5: Solve for x
    x = 144,832,454.99/13,654.28
  6. Step 6: Final answer
    x = 10,607.11

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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.