Home / 18,870.36-28,306.17-8,482.14

Finding the Fourth Proportional to 18,870.36, 28,306.17 and 8,482.14

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Solution

The fourth proportional to 18,870.36, 28,306.17 and 8,482.14 is: 12,723.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,870.36 : 28,306.17 = 8,482.14 : x
  2. Step 2: Convert to fraction form
    18,870.36/28,306.17 = 8,482.14/x
  3. Step 3: Cross multiply
    18,870.36x = 28,306.17 × 8,482.14
  4. Step 4: Simplify right side
    18,870.36x = 240,096,896.80
  5. Step 5: Solve for x
    x = 240,096,896.80/18,870.36
  6. Step 6: Final answer
    x = 12,723.49

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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.