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Finding the Fourth Proportional to 12,854.52, 17,739.96 and 7,550.88

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Solution

The fourth proportional to 12,854.52, 17,739.96 and 7,550.88 is: 10,420.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,854.52 : 17,739.96 = 7,550.88 : x
  2. Step 2: Convert to fraction form
    12,854.52/17,739.96 = 7,550.88/x
  3. Step 3: Cross multiply
    12,854.52x = 17,739.96 × 7,550.88
  4. Step 4: Simplify right side
    12,854.52x = 133,952,309.16
  5. Step 5: Solve for x
    x = 133,952,309.16/12,854.52
  6. Step 6: Final answer
    x = 10,420.64

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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.