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Finding the Fourth Proportional to 8,502.40, 11,727.48 and 8,346.88

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Solution

The fourth proportional to 8,502.40, 11,727.48 and 8,346.88 is: 11,512.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,502.40 : 11,727.48 = 8,346.88 : x
  2. Step 2: Convert to fraction form
    8,502.40/11,727.48 = 8,346.88/x
  3. Step 3: Cross multiply
    8,502.40x = 11,727.48 × 8,346.88
  4. Step 4: Simplify right side
    8,502.40x = 97,887,868.26
  5. Step 5: Solve for x
    x = 97,887,868.26/8,502.40
  6. Step 6: Final answer
    x = 11,512.97

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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.