Home / 18,870.98-28,306.53-5,723.46

Finding the Fourth Proportional to 18,870.98, 28,306.53 and 5,723.46

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Solution

The fourth proportional to 18,870.98, 28,306.53 and 5,723.46 is: 8,585.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,870.98 : 28,306.53 = 5,723.46 : x
  2. Step 2: Convert to fraction form
    18,870.98/28,306.53 = 5,723.46/x
  3. Step 3: Cross multiply
    18,870.98x = 28,306.53 × 5,723.46
  4. Step 4: Simplify right side
    18,870.98x = 162,011,292.19
  5. Step 5: Solve for x
    x = 162,011,292.19/18,870.98
  6. Step 6: Final answer
    x = 8,585.21

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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.