Home / 18,338.75-25,308.02-9,955.79

Finding the Fourth Proportional to 18,338.75, 25,308.02 and 9,955.79

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Solution

The fourth proportional to 18,338.75, 25,308.02 and 9,955.79 is: 13,739.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,338.75 : 25,308.02 = 9,955.79 : x
  2. Step 2: Convert to fraction form
    18,338.75/25,308.02 = 9,955.79/x
  3. Step 3: Cross multiply
    18,338.75x = 25,308.02 × 9,955.79
  4. Step 4: Simplify right side
    18,338.75x = 251,961,332.44
  5. Step 5: Solve for x
    x = 251,961,332.44/18,338.75
  6. Step 6: Final answer
    x = 13,739.29

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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.