Home / 18,221.39-25,151.80-10,670.14

Finding the Fourth Proportional to 18,221.39, 25,151.80 and 10,670.14

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Solution

The fourth proportional to 18,221.39, 25,151.80 and 10,670.14 is: 14,728.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,221.39 : 25,151.80 = 10,670.14 : x
  2. Step 2: Convert to fraction form
    18,221.39/25,151.80 = 10,670.14/x
  3. Step 3: Cross multiply
    18,221.39x = 25,151.80 × 10,670.14
  4. Step 4: Simplify right side
    18,221.39x = 268,373,227.25
  5. Step 5: Solve for x
    x = 268,373,227.25/18,221.39
  6. Step 6: Final answer
    x = 14,728.48

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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.