Home / 10,306.41-15,457.67-4,382.20

Finding the Fourth Proportional to 10,306.41, 15,457.67 and 4,382.20

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Solution

The fourth proportional to 10,306.41, 15,457.67 and 4,382.20 is: 6,572.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,306.41 : 15,457.67 = 4,382.20 : x
  2. Step 2: Convert to fraction form
    10,306.41/15,457.67 = 4,382.20/x
  3. Step 3: Cross multiply
    10,306.41x = 15,457.67 × 4,382.20
  4. Step 4: Simplify right side
    10,306.41x = 67,738,601.47
  5. Step 5: Solve for x
    x = 67,738,601.47/10,306.41
  6. Step 6: Final answer
    x = 6,572.47

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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.