Home / 8,780.31-13,177.38-3,853.35

Finding the Fourth Proportional to 8,780.31, 13,177.38 and 3,853.35

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Solution

The fourth proportional to 8,780.31, 13,177.38 and 3,853.35 is: 5,783.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.31 : 13,177.38 = 3,853.35 : x
  2. Step 2: Convert to fraction form
    8,780.31/13,177.38 = 3,853.35/x
  3. Step 3: Cross multiply
    8,780.31x = 13,177.38 × 3,853.35
  4. Step 4: Simplify right side
    8,780.31x = 50,777,071.67
  5. Step 5: Solve for x
    x = 50,777,071.67/8,780.31
  6. Step 6: Final answer
    x = 5,783.06

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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.