Home / 8,249.72-12,378.67-6,585.55

Finding the Fourth Proportional to 8,249.72, 12,378.67 and 6,585.55

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Solution

The fourth proportional to 8,249.72, 12,378.67 and 6,585.55 is: 9,881.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,249.72 : 12,378.67 = 6,585.55 : x
  2. Step 2: Convert to fraction form
    8,249.72/12,378.67 = 6,585.55/x
  3. Step 3: Cross multiply
    8,249.72x = 12,378.67 × 6,585.55
  4. Step 4: Simplify right side
    8,249.72x = 81,520,302.81
  5. Step 5: Solve for x
    x = 81,520,302.81/8,249.72
  6. Step 6: Final answer
    x = 9,881.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.