Home / 15,551.28-21,454.01-9,882.99

Finding the Fourth Proportional to 15,551.28, 21,454.01 and 9,882.99

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Solution

The fourth proportional to 15,551.28, 21,454.01 and 9,882.99 is: 13,634.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,551.28 : 21,454.01 = 9,882.99 : x
  2. Step 2: Convert to fraction form
    15,551.28/21,454.01 = 9,882.99/x
  3. Step 3: Cross multiply
    15,551.28x = 21,454.01 × 9,882.99
  4. Step 4: Simplify right side
    15,551.28x = 212,029,716.87
  5. Step 5: Solve for x
    x = 212,029,716.87/15,551.28
  6. Step 6: Final answer
    x = 13,634.23

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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.