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Finding the Fourth Proportional to 15,877.92, 23,809.98 and 8,480.72

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Solution

The fourth proportional to 15,877.92, 23,809.98 and 8,480.72 is: 12,717.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,877.92 : 23,809.98 = 8,480.72 : x
  2. Step 2: Convert to fraction form
    15,877.92/23,809.98 = 8,480.72/x
  3. Step 3: Cross multiply
    15,877.92x = 23,809.98 × 8,480.72
  4. Step 4: Simplify right side
    15,877.92x = 201,925,773.59
  5. Step 5: Solve for x
    x = 201,925,773.59/15,877.92
  6. Step 6: Final answer
    x = 12,717.39

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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.