Home / 10,320.41-15,479.17-4,078.82

Finding the Fourth Proportional to 10,320.41, 15,479.17 and 4,078.82

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Solution

The fourth proportional to 10,320.41, 15,479.17 and 4,078.82 is: 6,117.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,320.41 : 15,479.17 = 4,078.82 : x
  2. Step 2: Convert to fraction form
    10,320.41/15,479.17 = 4,078.82/x
  3. Step 3: Cross multiply
    10,320.41x = 15,479.17 × 4,078.82
  4. Step 4: Simplify right side
    10,320.41x = 63,136,776.68
  5. Step 5: Solve for x
    x = 63,136,776.68/10,320.41
  6. Step 6: Final answer
    x = 6,117.66

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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.