Home / 10,179.78-15,271.85-3,159.64

Finding the Fourth Proportional to 10,179.78, 15,271.85 and 3,159.64

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Solution

The fourth proportional to 10,179.78, 15,271.85 and 3,159.64 is: 4,740.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,179.78 : 15,271.85 = 3,159.64 : x
  2. Step 2: Convert to fraction form
    10,179.78/15,271.85 = 3,159.64/x
  3. Step 3: Cross multiply
    10,179.78x = 15,271.85 × 3,159.64
  4. Step 4: Simplify right side
    10,179.78x = 48,253,548.13
  5. Step 5: Solve for x
    x = 48,253,548.13/10,179.78
  6. Step 6: Final answer
    x = 4,740.14

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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.