Home / 15,871.41-23,810.45-4,778.91

Finding the Fourth Proportional to 15,871.41, 23,810.45 and 4,778.91

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Solution

The fourth proportional to 15,871.41, 23,810.45 and 4,778.91 is: 7,169.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,871.41 : 23,810.45 = 4,778.91 : x
  2. Step 2: Convert to fraction form
    15,871.41/23,810.45 = 4,778.91/x
  3. Step 3: Cross multiply
    15,871.41x = 23,810.45 × 4,778.91
  4. Step 4: Simplify right side
    15,871.41x = 113,787,997.61
  5. Step 5: Solve for x
    x = 113,787,997.61/15,871.41
  6. Step 6: Final answer
    x = 7,169.37

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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.