Home / 8,930.86-13,398.51-2,690.73

Finding the Fourth Proportional to 8,930.86, 13,398.51 and 2,690.73

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Solution

The fourth proportional to 8,930.86, 13,398.51 and 2,690.73 is: 4,036.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,930.86 : 13,398.51 = 2,690.73 : x
  2. Step 2: Convert to fraction form
    8,930.86/13,398.51 = 2,690.73/x
  3. Step 3: Cross multiply
    8,930.86x = 13,398.51 × 2,690.73
  4. Step 4: Simplify right side
    8,930.86x = 36,051,772.81
  5. Step 5: Solve for x
    x = 36,051,772.81/8,930.86
  6. Step 6: Final answer
    x = 4,036.76

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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.