Home / 9,079.42-12,529.56-5,305.18

Finding the Fourth Proportional to 9,079.42, 12,529.56 and 5,305.18

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Solution

The fourth proportional to 9,079.42, 12,529.56 and 5,305.18 is: 7,321.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,079.42 : 12,529.56 = 5,305.18 : x
  2. Step 2: Convert to fraction form
    9,079.42/12,529.56 = 5,305.18/x
  3. Step 3: Cross multiply
    9,079.42x = 12,529.56 × 5,305.18
  4. Step 4: Simplify right side
    9,079.42x = 66,471,571.12
  5. Step 5: Solve for x
    x = 66,471,571.12/9,079.42
  6. Step 6: Final answer
    x = 7,321.13

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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.