Home / 8,727.46-12,040.53-6,208.78

Finding the Fourth Proportional to 8,727.46, 12,040.53 and 6,208.78

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Solution

The fourth proportional to 8,727.46, 12,040.53 and 6,208.78 is: 8,565.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,727.46 : 12,040.53 = 6,208.78 : x
  2. Step 2: Convert to fraction form
    8,727.46/12,040.53 = 6,208.78/x
  3. Step 3: Cross multiply
    8,727.46x = 12,040.53 × 6,208.78
  4. Step 4: Simplify right side
    8,727.46x = 74,757,001.85
  5. Step 5: Solve for x
    x = 74,757,001.85/8,727.46
  6. Step 6: Final answer
    x = 8,565.72

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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.