Home / 18,966.93-28,454.05-7,279.23

Finding the Fourth Proportional to 18,966.93, 28,454.05 and 7,279.23

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Solution

The fourth proportional to 18,966.93, 28,454.05 and 7,279.23 is: 10,920.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,966.93 : 28,454.05 = 7,279.23 : x
  2. Step 2: Convert to fraction form
    18,966.93/28,454.05 = 7,279.23/x
  3. Step 3: Cross multiply
    18,966.93x = 28,454.05 × 7,279.23
  4. Step 4: Simplify right side
    18,966.93x = 207,123,690.18
  5. Step 5: Solve for x
    x = 207,123,690.18/18,966.93
  6. Step 6: Final answer
    x = 10,920.26

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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.