Home / 18,143.04-25,034.16-11,071.72

Finding the Fourth Proportional to 18,143.04, 25,034.16 and 11,071.72

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Solution

The fourth proportional to 18,143.04, 25,034.16 and 11,071.72 is: 15,277.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,143.04 : 25,034.16 = 11,071.72 : x
  2. Step 2: Convert to fraction form
    18,143.04/25,034.16 = 11,071.72/x
  3. Step 3: Cross multiply
    18,143.04x = 25,034.16 × 11,071.72
  4. Step 4: Simplify right side
    18,143.04x = 277,171,209.96
  5. Step 5: Solve for x
    x = 277,171,209.96/18,143.04
  6. Step 6: Final answer
    x = 15,277.00

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Half scale
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Double scale
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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.