Home / 9,244.20-13,778.47-8,718.80

Finding the Fourth Proportional to 9,244.20, 13,778.47 and 8,718.80

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Solution

The fourth proportional to 9,244.20, 13,778.47 and 8,718.80 is: 12,995.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,244.20 : 13,778.47 = 8,718.80 : x
  2. Step 2: Convert to fraction form
    9,244.20/13,778.47 = 8,718.80/x
  3. Step 3: Cross multiply
    9,244.20x = 13,778.47 × 8,718.80
  4. Step 4: Simplify right side
    9,244.20x = 120,131,680.64
  5. Step 5: Solve for x
    x = 120,131,680.64/9,244.20
  6. Step 6: Final answer
    x = 12,995.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.