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Finding the Fourth Proportional to 25,302.61, 37,960.40 and 8,662.78

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Solution

The fourth proportional to 25,302.61, 37,960.40 and 8,662.78 is: 12,996.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,302.61 : 37,960.40 = 8,662.78 : x
  2. Step 2: Convert to fraction form
    25,302.61/37,960.40 = 8,662.78/x
  3. Step 3: Cross multiply
    25,302.61x = 37,960.40 × 8,662.78
  4. Step 4: Simplify right side
    25,302.61x = 328,842,593.91
  5. Step 5: Solve for x
    x = 328,842,593.91/25,302.61
  6. Step 6: Final answer
    x = 12,996.39

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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.