Home / 9,255.06-12,771-5,275.80

Finding the Fourth Proportional to 9,255.06, 12,771 and 5,275.80

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Solution

The fourth proportional to 9,255.06, 12,771 and 5,275.80 is: 7,280.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,255.06 : 12,771 = 5,275.80 : x
  2. Step 2: Convert to fraction form
    9,255.06/12,771 = 5,275.80/x
  3. Step 3: Cross multiply
    9,255.06x = 12,771 × 5,275.80
  4. Step 4: Simplify right side
    9,255.06x = 67,377,241.80
  5. Step 5: Solve for x
    x = 67,377,241.80/9,255.06
  6. Step 6: Final answer
    x = 7,280.04

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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.