Home / 25,783.76-38,676.56-8,251.31

Finding the Fourth Proportional to 25,783.76, 38,676.56 and 8,251.31

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Solution

The fourth proportional to 25,783.76, 38,676.56 and 8,251.31 is: 12,377.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,783.76 : 38,676.56 = 8,251.31 : x
  2. Step 2: Convert to fraction form
    25,783.76/38,676.56 = 8,251.31/x
  3. Step 3: Cross multiply
    25,783.76x = 38,676.56 × 8,251.31
  4. Step 4: Simplify right side
    25,783.76x = 319,132,341.73
  5. Step 5: Solve for x
    x = 319,132,341.73/25,783.76
  6. Step 6: Final answer
    x = 12,377.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.