Home / 10,887.41-16,331.03-2,989.91

Finding the Fourth Proportional to 10,887.41, 16,331.03 and 2,989.91

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Solution

The fourth proportional to 10,887.41, 16,331.03 and 2,989.91 is: 4,484.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.41 : 16,331.03 = 2,989.91 : x
  2. Step 2: Convert to fraction form
    10,887.41/16,331.03 = 2,989.91/x
  3. Step 3: Cross multiply
    10,887.41x = 16,331.03 × 2,989.91
  4. Step 4: Simplify right side
    10,887.41x = 48,828,363.82
  5. Step 5: Solve for x
    x = 48,828,363.82/10,887.41
  6. Step 6: Final answer
    x = 4,484.85

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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.