Home / 15,780.32-23,677.50-8,382.98

Finding the Fourth Proportional to 15,780.32, 23,677.50 and 8,382.98

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Solution

The fourth proportional to 15,780.32, 23,677.50 and 8,382.98 is: 12,578.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,780.32 : 23,677.50 = 8,382.98 : x
  2. Step 2: Convert to fraction form
    15,780.32/23,677.50 = 8,382.98/x
  3. Step 3: Cross multiply
    15,780.32x = 23,677.50 × 8,382.98
  4. Step 4: Simplify right side
    15,780.32x = 198,488,008.95
  5. Step 5: Solve for x
    x = 198,488,008.95/15,780.32
  6. Step 6: Final answer
    x = 12,578.20

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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.