Home / 15,943.48-21,996.06-9,972.88

Finding the Fourth Proportional to 15,943.48, 21,996.06 and 9,972.88

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Solution

The fourth proportional to 15,943.48, 21,996.06 and 9,972.88 is: 13,758.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,943.48 : 21,996.06 = 9,972.88 : x
  2. Step 2: Convert to fraction form
    15,943.48/21,996.06 = 9,972.88/x
  3. Step 3: Cross multiply
    15,943.48x = 21,996.06 × 9,972.88
  4. Step 4: Simplify right side
    15,943.48x = 219,364,066.85
  5. Step 5: Solve for x
    x = 219,364,066.85/15,943.48
  6. Step 6: Final answer
    x = 13,758.86

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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.