Home / 9,418.57-12,999.42-6,231.93

Finding the Fourth Proportional to 9,418.57, 12,999.42 and 6,231.93

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Solution

The fourth proportional to 9,418.57, 12,999.42 and 6,231.93 is: 8,601.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,418.57 : 12,999.42 = 6,231.93 : x
  2. Step 2: Convert to fraction form
    9,418.57/12,999.42 = 6,231.93/x
  3. Step 3: Cross multiply
    9,418.57x = 12,999.42 × 6,231.93
  4. Step 4: Simplify right side
    9,418.57x = 81,011,475.48
  5. Step 5: Solve for x
    x = 81,011,475.48/9,418.57
  6. Step 6: Final answer
    x = 8,601.25

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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.