Home / 8,217.40-11,337.42-4,680.40

Finding the Fourth Proportional to 8,217.40, 11,337.42 and 4,680.40

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Solution

The fourth proportional to 8,217.40, 11,337.42 and 4,680.40 is: 6,457.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,217.40 : 11,337.42 = 4,680.40 : x
  2. Step 2: Convert to fraction form
    8,217.40/11,337.42 = 4,680.40/x
  3. Step 3: Cross multiply
    8,217.40x = 11,337.42 × 4,680.40
  4. Step 4: Simplify right side
    8,217.40x = 53,063,660.57
  5. Step 5: Solve for x
    x = 53,063,660.57/8,217.40
  6. Step 6: Final answer
    x = 6,457.48

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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.