Home / 10,179.40-15,266.64-4,253.09

Finding the Fourth Proportional to 10,179.40, 15,266.64 and 4,253.09

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Solution

The fourth proportional to 10,179.40, 15,266.64 and 4,253.09 is: 6,378.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,179.40 : 15,266.64 = 4,253.09 : x
  2. Step 2: Convert to fraction form
    10,179.40/15,266.64 = 4,253.09/x
  3. Step 3: Cross multiply
    10,179.40x = 15,266.64 × 4,253.09
  4. Step 4: Simplify right side
    10,179.40x = 64,930,333.53
  5. Step 5: Solve for x
    x = 64,930,333.53/10,179.40
  6. Step 6: Final answer
    x = 6,378.60

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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.