Home / 8,680.27-11,975.48-6,417.05

Finding the Fourth Proportional to 8,680.27, 11,975.48 and 6,417.05

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Solution

The fourth proportional to 8,680.27, 11,975.48 and 6,417.05 is: 8,853.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.27 : 11,975.48 = 6,417.05 : x
  2. Step 2: Convert to fraction form
    8,680.27/11,975.48 = 6,417.05/x
  3. Step 3: Cross multiply
    8,680.27x = 11,975.48 × 6,417.05
  4. Step 4: Simplify right side
    8,680.27x = 76,847,253.93
  5. Step 5: Solve for x
    x = 76,847,253.93/8,680.27
  6. Step 6: Final answer
    x = 8,853.09

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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.