Home / 15,416.50-21,274.82-8,342.92

Finding the Fourth Proportional to 15,416.50, 21,274.82 and 8,342.92

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Solution

The fourth proportional to 15,416.50, 21,274.82 and 8,342.92 is: 11,513.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,416.50 : 21,274.82 = 8,342.92 : x
  2. Step 2: Convert to fraction form
    15,416.50/21,274.82 = 8,342.92/x
  3. Step 3: Cross multiply
    15,416.50x = 21,274.82 × 8,342.92
  4. Step 4: Simplify right side
    15,416.50x = 177,494,088.94
  5. Step 5: Solve for x
    x = 177,494,088.94/15,416.50
  6. Step 6: Final answer
    x = 11,513.26

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Half scale
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Double scale
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Similar ratio
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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.