Home / 9,291.69-12,819.38-5,309.96

Finding the Fourth Proportional to 9,291.69, 12,819.38 and 5,309.96

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Solution

The fourth proportional to 9,291.69, 12,819.38 and 5,309.96 is: 7,325.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,291.69 : 12,819.38 = 5,309.96 : x
  2. Step 2: Convert to fraction form
    9,291.69/12,819.38 = 5,309.96/x
  3. Step 3: Cross multiply
    9,291.69x = 12,819.38 × 5,309.96
  4. Step 4: Simplify right side
    9,291.69x = 68,070,440.35
  5. Step 5: Solve for x
    x = 68,070,440.35/9,291.69
  6. Step 6: Final answer
    x = 7,325.95

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1.5x scale

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.