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Finding the Fourth Proportional to 8,440.93, 12,650.43 and 3,437.47

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Solution

The fourth proportional to 8,440.93, 12,650.43 and 3,437.47 is: 5,151.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,440.93 : 12,650.43 = 3,437.47 : x
  2. Step 2: Convert to fraction form
    8,440.93/12,650.43 = 3,437.47/x
  3. Step 3: Cross multiply
    8,440.93x = 12,650.43 × 3,437.47
  4. Step 4: Simplify right side
    8,440.93x = 43,485,502.32
  5. Step 5: Solve for x
    x = 43,485,502.32/8,440.93
  6. Step 6: Final answer
    x = 5,151.74

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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.