Home / 9,324.48-12,871.84-7,086.72

Finding the Fourth Proportional to 9,324.48, 12,871.84 and 7,086.72

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Solution

The fourth proportional to 9,324.48, 12,871.84 and 7,086.72 is: 9,782.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,324.48 : 12,871.84 = 7,086.72 : x
  2. Step 2: Convert to fraction form
    9,324.48/12,871.84 = 7,086.72/x
  3. Step 3: Cross multiply
    9,324.48x = 12,871.84 × 7,086.72
  4. Step 4: Simplify right side
    9,324.48x = 91,219,125.96
  5. Step 5: Solve for x
    x = 91,219,125.96/9,324.48
  6. Step 6: Final answer
    x = 9,782.76

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Double scale
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Similar ratio
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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.