Home / 9,260.11-12,778.32-5,281.39

Finding the Fourth Proportional to 9,260.11, 12,778.32 and 5,281.39

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Solution

The fourth proportional to 9,260.11, 12,778.32 and 5,281.39 is: 7,287.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,260.11 : 12,778.32 = 5,281.39 : x
  2. Step 2: Convert to fraction form
    9,260.11/12,778.32 = 5,281.39/x
  3. Step 3: Cross multiply
    9,260.11x = 12,778.32 × 5,281.39
  4. Step 4: Simplify right side
    9,260.11x = 67,487,291.46
  5. Step 5: Solve for x
    x = 67,487,291.46/9,260.11
  6. Step 6: Final answer
    x = 7,287.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.