Home / 10,255.20-14,151.12-5,778.24

Finding the Fourth Proportional to 10,255.20, 14,151.12 and 5,778.24

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Solution

The fourth proportional to 10,255.20, 14,151.12 and 5,778.24 is: 7,973.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,255.20 : 14,151.12 = 5,778.24 : x
  2. Step 2: Convert to fraction form
    10,255.20/14,151.12 = 5,778.24/x
  3. Step 3: Cross multiply
    10,255.20x = 14,151.12 × 5,778.24
  4. Step 4: Simplify right side
    10,255.20x = 81,768,567.63
  5. Step 5: Solve for x
    x = 81,768,567.63/10,255.20
  6. Step 6: Final answer
    x = 7,973.38

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Half scale
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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.