Home / 9,125.16-13,685.10-3,278.60

Finding the Fourth Proportional to 9,125.16, 13,685.10 and 3,278.60

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Solution

The fourth proportional to 9,125.16, 13,685.10 and 3,278.60 is: 4,916.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,125.16 : 13,685.10 = 3,278.60 : x
  2. Step 2: Convert to fraction form
    9,125.16/13,685.10 = 3,278.60/x
  3. Step 3: Cross multiply
    9,125.16x = 13,685.10 × 3,278.60
  4. Step 4: Simplify right side
    9,125.16x = 44,867,968.86
  5. Step 5: Solve for x
    x = 44,867,968.86/9,125.16
  6. Step 6: Final answer
    x = 4,916.95

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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.