Home / 8,460.74-12,691.96-2,913.35

Finding the Fourth Proportional to 8,460.74, 12,691.96 and 2,913.35

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Solution

The fourth proportional to 8,460.74, 12,691.96 and 2,913.35 is: 4,370.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,460.74 : 12,691.96 = 2,913.35 : x
  2. Step 2: Convert to fraction form
    8,460.74/12,691.96 = 2,913.35/x
  3. Step 3: Cross multiply
    8,460.74x = 12,691.96 × 2,913.35
  4. Step 4: Simplify right side
    8,460.74x = 36,976,121.67
  5. Step 5: Solve for x
    x = 36,976,121.67/8,460.74
  6. Step 6: Final answer
    x = 4,370.32

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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.