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Finding the Fourth Proportional to 16,309.53, 24,460.65 and 7,981.20

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Solution

The fourth proportional to 16,309.53, 24,460.65 and 7,981.20 is: 11,970.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,309.53 : 24,460.65 = 7,981.20 : x
  2. Step 2: Convert to fraction form
    16,309.53/24,460.65 = 7,981.20/x
  3. Step 3: Cross multiply
    16,309.53x = 24,460.65 × 7,981.20
  4. Step 4: Simplify right side
    16,309.53x = 195,225,339.78
  5. Step 5: Solve for x
    x = 195,225,339.78/16,309.53
  6. Step 6: Final answer
    x = 11,970.02

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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.