Home / 9,119.58-12,585.12-5,975.76

Finding the Fourth Proportional to 9,119.58, 12,585.12 and 5,975.76

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Solution

The fourth proportional to 9,119.58, 12,585.12 and 5,975.76 is: 8,246.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,119.58 : 12,585.12 = 5,975.76 : x
  2. Step 2: Convert to fraction form
    9,119.58/12,585.12 = 5,975.76/x
  3. Step 3: Cross multiply
    9,119.58x = 12,585.12 × 5,975.76
  4. Step 4: Simplify right side
    9,119.58x = 75,205,656.69
  5. Step 5: Solve for x
    x = 75,205,656.69/9,119.58
  6. Step 6: Final answer
    x = 8,246.61

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Double scale
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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.