Home / 14,315.76-21,454.20-10,631.88

Finding the Fourth Proportional to 14,315.76, 21,454.20 and 10,631.88

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Solution

The fourth proportional to 14,315.76, 21,454.20 and 10,631.88 is: 15,933.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,315.76 : 21,454.20 = 10,631.88 : x
  2. Step 2: Convert to fraction form
    14,315.76/21,454.20 = 10,631.88/x
  3. Step 3: Cross multiply
    14,315.76x = 21,454.20 × 10,631.88
  4. Step 4: Simplify right side
    14,315.76x = 228,098,479.90
  5. Step 5: Solve for x
    x = 228,098,479.90/14,315.76
  6. Step 6: Final answer
    x = 15,933.38

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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.