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Finding the Fourth Proportional to 15,781.92, 23,653.08 and 8,368.08

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Solution

The fourth proportional to 15,781.92, 23,653.08 and 8,368.08 is: 12,541.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,781.92 : 23,653.08 = 8,368.08 : x
  2. Step 2: Convert to fraction form
    15,781.92/23,653.08 = 8,368.08/x
  3. Step 3: Cross multiply
    15,781.92x = 23,653.08 × 8,368.08
  4. Step 4: Simplify right side
    15,781.92x = 197,930,865.69
  5. Step 5: Solve for x
    x = 197,930,865.69/15,781.92
  6. Step 6: Final answer
    x = 12,541.62

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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.