Home / 10,877.18-16,312.28-3,479.87

Finding the Fourth Proportional to 10,877.18, 16,312.28 and 3,479.87

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Solution

The fourth proportional to 10,877.18, 16,312.28 and 3,479.87 is: 5,218.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,877.18 : 16,312.28 = 3,479.87 : x
  2. Step 2: Convert to fraction form
    10,877.18/16,312.28 = 3,479.87/x
  3. Step 3: Cross multiply
    10,877.18x = 16,312.28 × 3,479.87
  4. Step 4: Simplify right side
    10,877.18x = 56,764,637.18
  5. Step 5: Solve for x
    x = 56,764,637.18/10,877.18
  6. Step 6: Final answer
    x = 5,218.69

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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.