Home / 15,589.28-21,519.28-10,551.04

Finding the Fourth Proportional to 15,589.28, 21,519.28 and 10,551.04

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Solution

The fourth proportional to 15,589.28, 21,519.28 and 10,551.04 is: 14,564.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,589.28 : 21,519.28 = 10,551.04 : x
  2. Step 2: Convert to fraction form
    15,589.28/21,519.28 = 10,551.04/x
  3. Step 3: Cross multiply
    15,589.28x = 21,519.28 × 10,551.04
  4. Step 4: Simplify right side
    15,589.28x = 227,050,784.05
  5. Step 5: Solve for x
    x = 227,050,784.05/15,589.28
  6. Step 6: Final answer
    x = 14,564.55

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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.