Home / 10,728.72-14,790.51-9,252.36

Finding the Fourth Proportional to 10,728.72, 14,790.51 and 9,252.36

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Solution

The fourth proportional to 10,728.72, 14,790.51 and 9,252.36 is: 12,755.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,728.72 : 14,790.51 = 9,252.36 : x
  2. Step 2: Convert to fraction form
    10,728.72/14,790.51 = 9,252.36/x
  3. Step 3: Cross multiply
    10,728.72x = 14,790.51 × 9,252.36
  4. Step 4: Simplify right side
    10,728.72x = 136,847,123.10
  5. Step 5: Solve for x
    x = 136,847,123.10/10,728.72
  6. Step 6: Final answer
    x = 12,755.21

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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.