Home / 18,212.16-25,119.30-12,548.76

Finding the Fourth Proportional to 18,212.16, 25,119.30 and 12,548.76

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Solution

The fourth proportional to 18,212.16, 25,119.30 and 12,548.76 is: 17,308.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,212.16 : 25,119.30 = 12,548.76 : x
  2. Step 2: Convert to fraction form
    18,212.16/25,119.30 = 12,548.76/x
  3. Step 3: Cross multiply
    18,212.16x = 25,119.30 × 12,548.76
  4. Step 4: Simplify right side
    18,212.16x = 315,216,067.07
  5. Step 5: Solve for x
    x = 315,216,067.07/18,212.16
  6. Step 6: Final answer
    x = 17,308.00

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Half scale
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Double 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.