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Finding the Fourth Proportional to 12,502.79, 18,746.26 and 6,261.11

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Solution

The fourth proportional to 12,502.79, 18,746.26 and 6,261.11 is: 9,387.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,502.79 : 18,746.26 = 6,261.11 : x
  2. Step 2: Convert to fraction form
    12,502.79/18,746.26 = 6,261.11/x
  3. Step 3: Cross multiply
    12,502.79x = 18,746.26 × 6,261.11
  4. Step 4: Simplify right side
    12,502.79x = 117,372,270.91
  5. Step 5: Solve for x
    x = 117,372,270.91/12,502.79
  6. Step 6: Final answer
    x = 9,387.69

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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.