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Finding the Fourth Proportional to 8,637.91, 12,957.10 and 2,397.94

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Solution

The fourth proportional to 8,637.91, 12,957.10 and 2,397.94 is: 3,596.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,637.91 : 12,957.10 = 2,397.94 : x
  2. Step 2: Convert to fraction form
    8,637.91/12,957.10 = 2,397.94/x
  3. Step 3: Cross multiply
    8,637.91x = 12,957.10 × 2,397.94
  4. Step 4: Simplify right side
    8,637.91x = 31,070,309.99
  5. Step 5: Solve for x
    x = 31,070,309.99/8,637.91
  6. Step 6: Final answer
    x = 3,596.97

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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.