Home / 18,853.17-28,279.79-7,752.11

Finding the Fourth Proportional to 18,853.17, 28,279.79 and 7,752.11

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Solution

The fourth proportional to 18,853.17, 28,279.79 and 7,752.11 is: 11,628.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,853.17 : 28,279.79 = 7,752.11 : x
  2. Step 2: Convert to fraction form
    18,853.17/28,279.79 = 7,752.11/x
  3. Step 3: Cross multiply
    18,853.17x = 28,279.79 × 7,752.11
  4. Step 4: Simplify right side
    18,853.17x = 219,227,862.70
  5. Step 5: Solve for x
    x = 219,227,862.70/18,853.17
  6. Step 6: Final answer
    x = 11,628.17

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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.