Home / 9,309.12-12,846.24-5,330.16

Finding the Fourth Proportional to 9,309.12, 12,846.24 and 5,330.16

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Solution

The fourth proportional to 9,309.12, 12,846.24 and 5,330.16 is: 7,355.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,309.12 : 12,846.24 = 5,330.16 : x
  2. Step 2: Convert to fraction form
    9,309.12/12,846.24 = 5,330.16/x
  3. Step 3: Cross multiply
    9,309.12x = 12,846.24 × 5,330.16
  4. Step 4: Simplify right side
    9,309.12x = 68,472,514.60
  5. Step 5: Solve for x
    x = 68,472,514.60/9,309.12
  6. Step 6: Final answer
    x = 7,355.42

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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.