Home / 15,577.62-21,498.36-8,865.30

Finding the Fourth Proportional to 15,577.62, 21,498.36 and 8,865.30

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Solution

The fourth proportional to 15,577.62, 21,498.36 and 8,865.30 is: 12,234.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,577.62 : 21,498.36 = 8,865.30 : x
  2. Step 2: Convert to fraction form
    15,577.62/21,498.36 = 8,865.30/x
  3. Step 3: Cross multiply
    15,577.62x = 21,498.36 × 8,865.30
  4. Step 4: Simplify right side
    15,577.62x = 190,589,410.91
  5. Step 5: Solve for x
    x = 190,589,410.91/15,577.62
  6. Step 6: Final answer
    x = 12,234.82

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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.