Home / 18,966.13-28,449.19-4,924.98

Finding the Fourth Proportional to 18,966.13, 28,449.19 and 4,924.98

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Solution

The fourth proportional to 18,966.13, 28,449.19 and 4,924.98 is: 7,387.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,966.13 : 28,449.19 = 4,924.98 : x
  2. Step 2: Convert to fraction form
    18,966.13/28,449.19 = 4,924.98/x
  3. Step 3: Cross multiply
    18,966.13x = 28,449.19 × 4,924.98
  4. Step 4: Simplify right side
    18,966.13x = 140,111,679.45
  5. Step 5: Solve for x
    x = 140,111,679.45/18,966.13
  6. Step 6: Final answer
    x = 7,387.47

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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.