Home / 14,115.66-21,177.06-9,963.78

Finding the Fourth Proportional to 14,115.66, 21,177.06 and 9,963.78

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Solution

The fourth proportional to 14,115.66, 21,177.06 and 9,963.78 is: 14,948.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,115.66 : 21,177.06 = 9,963.78 : x
  2. Step 2: Convert to fraction form
    14,115.66/21,177.06 = 9,963.78/x
  3. Step 3: Cross multiply
    14,115.66x = 21,177.06 × 9,963.78
  4. Step 4: Simplify right side
    14,115.66x = 211,003,566.89
  5. Step 5: Solve for x
    x = 211,003,566.89/14,115.66
  6. Step 6: Final answer
    x = 14,948.19

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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.