Home / 10,255.68-14,155.38-6,280.20

Finding the Fourth Proportional to 10,255.68, 14,155.38 and 6,280.20

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Solution

The fourth proportional to 10,255.68, 14,155.38 and 6,280.20 is: 8,668.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,255.68 : 14,155.38 = 6,280.20 : x
  2. Step 2: Convert to fraction form
    10,255.68/14,155.38 = 6,280.20/x
  3. Step 3: Cross multiply
    10,255.68x = 14,155.38 × 6,280.20
  4. Step 4: Simplify right side
    10,255.68x = 88,898,617.48
  5. Step 5: Solve for x
    x = 88,898,617.48/10,255.68
  6. Step 6: Final answer
    x = 8,668.23

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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.