Home / 18,456.90-25,472.40-10,905.69

Finding the Fourth Proportional to 18,456.90, 25,472.40 and 10,905.69

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Solution

The fourth proportional to 18,456.90, 25,472.40 and 10,905.69 is: 15,050.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,456.90 : 25,472.40 = 10,905.69 : x
  2. Step 2: Convert to fraction form
    18,456.90/25,472.40 = 10,905.69/x
  3. Step 3: Cross multiply
    18,456.90x = 25,472.40 × 10,905.69
  4. Step 4: Simplify right side
    18,456.90x = 277,794,097.96
  5. Step 5: Solve for x
    x = 277,794,097.96/18,456.90
  6. Step 6: Final answer
    x = 15,050.96

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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.