Home / 10,255.20-14,151.02-5,778.56

Finding the Fourth Proportional to 10,255.20, 14,151.02 and 5,778.56

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Solution

The fourth proportional to 10,255.20, 14,151.02 and 5,778.56 is: 7,973.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,255.20 : 14,151.02 = 5,778.56 : x
  2. Step 2: Convert to fraction form
    10,255.20/14,151.02 = 5,778.56/x
  3. Step 3: Cross multiply
    10,255.20x = 14,151.02 × 5,778.56
  4. Step 4: Simplify right side
    10,255.20x = 81,772,518.13
  5. Step 5: Solve for x
    x = 81,772,518.13/10,255.20
  6. Step 6: Final answer
    x = 7,973.76

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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.