Home / 8,865.86-12,231.46-5,087.66

Finding the Fourth Proportional to 8,865.86, 12,231.46 and 5,087.66

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Solution

The fourth proportional to 8,865.86, 12,231.46 and 5,087.66 is: 7,019.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,865.86 : 12,231.46 = 5,087.66 : x
  2. Step 2: Convert to fraction form
    8,865.86/12,231.46 = 5,087.66/x
  3. Step 3: Cross multiply
    8,865.86x = 12,231.46 × 5,087.66
  4. Step 4: Simplify right side
    8,865.86x = 62,229,527.64
  5. Step 5: Solve for x
    x = 62,229,527.64/8,865.86
  6. Step 6: Final answer
    x = 7,019.00

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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.