Home / 17,921.63-24,731.15-9,963.28

Finding the Fourth Proportional to 17,921.63, 24,731.15 and 9,963.28

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Solution

The fourth proportional to 17,921.63, 24,731.15 and 9,963.28 is: 13,748.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,921.63 : 24,731.15 = 9,963.28 : x
  2. Step 2: Convert to fraction form
    17,921.63/24,731.15 = 9,963.28/x
  3. Step 3: Cross multiply
    17,921.63x = 24,731.15 × 9,963.28
  4. Step 4: Simplify right side
    17,921.63x = 246,403,198.70
  5. Step 5: Solve for x
    x = 246,403,198.70/17,921.63
  6. Step 6: Final answer
    x = 13,748.93

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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.