Home / 15,411.60-23,117.40-5,551.20

Finding the Fourth Proportional to 15,411.60, 23,117.40 and 5,551.20

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Solution

The fourth proportional to 15,411.60, 23,117.40 and 5,551.20 is: 8,326.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,411.60 : 23,117.40 = 5,551.20 : x
  2. Step 2: Convert to fraction form
    15,411.60/23,117.40 = 5,551.20/x
  3. Step 3: Cross multiply
    15,411.60x = 23,117.40 × 5,551.20
  4. Step 4: Simplify right side
    15,411.60x = 128,329,310.88
  5. Step 5: Solve for x
    x = 128,329,310.88/15,411.60
  6. Step 6: Final answer
    x = 8,326.80

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.