Home / 8,931.86-13,400.01-2,691.73

Finding the Fourth Proportional to 8,931.86, 13,400.01 and 2,691.73

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Solution

The fourth proportional to 8,931.86, 13,400.01 and 2,691.73 is: 4,038.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.86 : 13,400.01 = 2,691.73 : x
  2. Step 2: Convert to fraction form
    8,931.86/13,400.01 = 2,691.73/x
  3. Step 3: Cross multiply
    8,931.86x = 13,400.01 × 2,691.73
  4. Step 4: Simplify right side
    8,931.86x = 36,069,208.92
  5. Step 5: Solve for x
    x = 36,069,208.92/8,931.86
  6. Step 6: Final answer
    x = 4,038.26

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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.