Home / 15,557.28-21,468.60-8,843.64

Finding the Fourth Proportional to 15,557.28, 21,468.60 and 8,843.64

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Solution

The fourth proportional to 15,557.28, 21,468.60 and 8,843.64 is: 12,203.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,557.28 : 21,468.60 = 8,843.64 : x
  2. Step 2: Convert to fraction form
    15,557.28/21,468.60 = 8,843.64/x
  3. Step 3: Cross multiply
    15,557.28x = 21,468.60 × 8,843.64
  4. Step 4: Simplify right side
    15,557.28x = 189,860,569.70
  5. Step 5: Solve for x
    x = 189,860,569.70/15,557.28
  6. Step 6: Final answer
    x = 12,203.97

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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.