Home / 9,161.68-12,636.28-6,329.92

Finding the Fourth Proportional to 9,161.68, 12,636.28 and 6,329.92

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Solution

The fourth proportional to 9,161.68, 12,636.28 and 6,329.92 is: 8,730.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,161.68 : 12,636.28 = 6,329.92 : x
  2. Step 2: Convert to fraction form
    9,161.68/12,636.28 = 6,329.92/x
  3. Step 3: Cross multiply
    9,161.68x = 12,636.28 × 6,329.92
  4. Step 4: Simplify right side
    9,161.68x = 79,986,641.50
  5. Step 5: Solve for x
    x = 79,986,641.50/9,161.68
  6. Step 6: Final answer
    x = 8,730.56

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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.