Home / 18,293.90-25,245.56-9,910.40

Finding the Fourth Proportional to 18,293.90, 25,245.56 and 9,910.40

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Solution

The fourth proportional to 18,293.90, 25,245.56 and 9,910.40 is: 13,676.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,293.90 : 25,245.56 = 9,910.40 : x
  2. Step 2: Convert to fraction form
    18,293.90/25,245.56 = 9,910.40/x
  3. Step 3: Cross multiply
    18,293.90x = 25,245.56 × 9,910.40
  4. Step 4: Simplify right side
    18,293.90x = 250,193,597.82
  5. Step 5: Solve for x
    x = 250,193,597.82/18,293.90
  6. Step 6: Final answer
    x = 13,676.34

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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.