Home / 10,177.38-15,264.65-2,780.06

Finding the Fourth Proportional to 10,177.38, 15,264.65 and 2,780.06

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Solution

The fourth proportional to 10,177.38, 15,264.65 and 2,780.06 is: 4,169.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,177.38 : 15,264.65 = 2,780.06 : x
  2. Step 2: Convert to fraction form
    10,177.38/15,264.65 = 2,780.06/x
  3. Step 3: Cross multiply
    10,177.38x = 15,264.65 × 2,780.06
  4. Step 4: Simplify right side
    10,177.38x = 42,436,573.51
  5. Step 5: Solve for x
    x = 42,436,573.51/10,177.38
  6. Step 6: Final answer
    x = 4,169.70

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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.