Home / 8,931.85-13,390.22-3,382.14

Finding the Fourth Proportional to 8,931.85, 13,390.22 and 3,382.14

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Solution

The fourth proportional to 8,931.85, 13,390.22 and 3,382.14 is: 5,070.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.85 : 13,390.22 = 3,382.14 : x
  2. Step 2: Convert to fraction form
    8,931.85/13,390.22 = 3,382.14/x
  3. Step 3: Cross multiply
    8,931.85x = 13,390.22 × 3,382.14
  4. Step 4: Simplify right side
    8,931.85x = 45,287,514.81
  5. Step 5: Solve for x
    x = 45,287,514.81/8,931.85
  6. Step 6: Final answer
    x = 5,070.34

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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.