Home / 14,961.98-20,648.45-8,247.61

Finding the Fourth Proportional to 14,961.98, 20,648.45 and 8,247.61

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Solution

The fourth proportional to 14,961.98, 20,648.45 and 8,247.61 is: 11,382.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,961.98 : 20,648.45 = 8,247.61 : x
  2. Step 2: Convert to fraction form
    14,961.98/20,648.45 = 8,247.61/x
  3. Step 3: Cross multiply
    14,961.98x = 20,648.45 × 8,247.61
  4. Step 4: Simplify right side
    14,961.98x = 170,300,362.70
  5. Step 5: Solve for x
    x = 170,300,362.70/14,961.98
  6. Step 6: Final answer
    x = 11,382.21

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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.