Home / 18,220.86-25,144.88-10,263.21

Finding the Fourth Proportional to 18,220.86, 25,144.88 and 10,263.21

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Solution

The fourth proportional to 18,220.86, 25,144.88 and 10,263.21 is: 14,163.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,220.86 : 25,144.88 = 10,263.21 : x
  2. Step 2: Convert to fraction form
    18,220.86/25,144.88 = 10,263.21/x
  3. Step 3: Cross multiply
    18,220.86x = 25,144.88 × 10,263.21
  4. Step 4: Simplify right side
    18,220.86x = 258,067,132.55
  5. Step 5: Solve for x
    x = 258,067,132.55/18,220.86
  6. Step 6: Final answer
    x = 14,163.28

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Half scale
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Double scale
Find fourth proportional to 18,221.86, 25,146.26 and 10,264.21
Similar ratio
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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.