Home / 10,938.60-16,407.18-3,148.20

Finding the Fourth Proportional to 10,938.60, 16,407.18 and 3,148.20

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Solution

The fourth proportional to 10,938.60, 16,407.18 and 3,148.20 is: 4,722.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,938.60 : 16,407.18 = 3,148.20 : x
  2. Step 2: Convert to fraction form
    10,938.60/16,407.18 = 3,148.20/x
  3. Step 3: Cross multiply
    10,938.60x = 16,407.18 × 3,148.20
  4. Step 4: Simplify right side
    10,938.60x = 51,653,084.08
  5. Step 5: Solve for x
    x = 51,653,084.08/10,938.60
  6. Step 6: Final answer
    x = 4,722.09

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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.