Home / 18,714.62-28,077.40-7,028.76

Finding the Fourth Proportional to 18,714.62, 28,077.40 and 7,028.76

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Solution

The fourth proportional to 18,714.62, 28,077.40 and 7,028.76 is: 10,545.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,714.62 : 28,077.40 = 7,028.76 : x
  2. Step 2: Convert to fraction form
    18,714.62/28,077.40 = 7,028.76/x
  3. Step 3: Cross multiply
    18,714.62x = 28,077.40 × 7,028.76
  4. Step 4: Simplify right side
    18,714.62x = 197,349,306.02
  5. Step 5: Solve for x
    x = 197,349,306.02/18,714.62
  6. Step 6: Final answer
    x = 10,545.19

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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.