Home / 9,420-14,132.26-2,845.78

Finding the Fourth Proportional to 9,420, 14,132.26 and 2,845.78

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Solution

The fourth proportional to 9,420, 14,132.26 and 2,845.78 is: 4,269.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,420 : 14,132.26 = 2,845.78 : x
  2. Step 2: Convert to fraction form
    9,420/14,132.26 = 2,845.78/x
  3. Step 3: Cross multiply
    9,420x = 14,132.26 × 2,845.78
  4. Step 4: Simplify right side
    9,420x = 40,217,302.86
  5. Step 5: Solve for x
    x = 40,217,302.86/9,420
  6. Step 6: Final answer
    x = 4,269.35

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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.