Home / 15,411.30-21,267.57-8,337.72

Finding the Fourth Proportional to 15,411.30, 21,267.57 and 8,337.72

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Solution

The fourth proportional to 15,411.30, 21,267.57 and 8,337.72 is: 11,506.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,411.30 : 21,267.57 = 8,337.72 : x
  2. Step 2: Convert to fraction form
    15,411.30/21,267.57 = 8,337.72/x
  3. Step 3: Cross multiply
    15,411.30x = 21,267.57 × 8,337.72
  4. Step 4: Simplify right side
    15,411.30x = 177,323,043.74
  5. Step 5: Solve for x
    x = 177,323,043.74/15,411.30
  6. Step 6: Final answer
    x = 11,506.04

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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.