Home / 14,961.24-20,649.33-9,916.56

Finding the Fourth Proportional to 14,961.24, 20,649.33 and 9,916.56

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Solution

The fourth proportional to 14,961.24, 20,649.33 and 9,916.56 is: 13,686.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,961.24 : 20,649.33 = 9,916.56 : x
  2. Step 2: Convert to fraction form
    14,961.24/20,649.33 = 9,916.56/x
  3. Step 3: Cross multiply
    14,961.24x = 20,649.33 × 9,916.56
  4. Step 4: Simplify right side
    14,961.24x = 204,770,319.90
  5. Step 5: Solve for x
    x = 204,770,319.90/14,961.24
  6. Step 6: Final answer
    x = 13,686.72

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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.