Home / 10,266.60-15,391.80-4,418.40

Finding the Fourth Proportional to 10,266.60, 15,391.80 and 4,418.40

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Solution

The fourth proportional to 10,266.60, 15,391.80 and 4,418.40 is: 6,624.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,266.60 : 15,391.80 = 4,418.40 : x
  2. Step 2: Convert to fraction form
    10,266.60/15,391.80 = 4,418.40/x
  3. Step 3: Cross multiply
    10,266.60x = 15,391.80 × 4,418.40
  4. Step 4: Simplify right side
    10,266.60x = 68,007,129.12
  5. Step 5: Solve for x
    x = 68,007,129.12/10,266.60
  6. Step 6: Final answer
    x = 6,624.11

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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.