Home / 15,145.28-22,679.84-9,581.76

Finding the Fourth Proportional to 15,145.28, 22,679.84 and 9,581.76

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Solution

The fourth proportional to 15,145.28, 22,679.84 and 9,581.76 is: 14,348.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,145.28 : 22,679.84 = 9,581.76 : x
  2. Step 2: Convert to fraction form
    15,145.28/22,679.84 = 9,581.76/x
  3. Step 3: Cross multiply
    15,145.28x = 22,679.84 × 9,581.76
  4. Step 4: Simplify right side
    15,145.28x = 217,312,783.72
  5. Step 5: Solve for x
    x = 217,312,783.72/15,145.28
  6. Step 6: Final answer
    x = 14,348.55

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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.