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Finding the Fourth Proportional to 8,943.77, 12,342.98 and 5,167.10

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Solution

The fourth proportional to 8,943.77, 12,342.98 and 5,167.10 is: 7,130.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,943.77 : 12,342.98 = 5,167.10 : x
  2. Step 2: Convert to fraction form
    8,943.77/12,342.98 = 5,167.10/x
  3. Step 3: Cross multiply
    8,943.77x = 12,342.98 × 5,167.10
  4. Step 4: Simplify right side
    8,943.77x = 63,777,411.96
  5. Step 5: Solve for x
    x = 63,777,411.96/8,943.77
  6. Step 6: Final answer
    x = 7,130.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.