Home / 18,220.22-25,143.24-10,263.18

Finding the Fourth Proportional to 18,220.22, 25,143.24 and 10,263.18

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Solution

The fourth proportional to 18,220.22, 25,143.24 and 10,263.18 is: 14,162.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,220.22 : 25,143.24 = 10,263.18 : x
  2. Step 2: Convert to fraction form
    18,220.22/25,143.24 = 10,263.18/x
  3. Step 3: Cross multiply
    18,220.22x = 25,143.24 × 10,263.18
  4. Step 4: Simplify right side
    18,220.22x = 258,049,597.90
  5. Step 5: Solve for x
    x = 258,049,597.90/18,220.22
  6. Step 6: Final answer
    x = 14,162.81

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Half scale
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Double scale
Find fourth proportional to 18,221.22, 25,144.62 and 10,264.18
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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.