Home / 9,121.16-13,675.58-4,957.66

Finding the Fourth Proportional to 9,121.16, 13,675.58 and 4,957.66

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Solution

The fourth proportional to 9,121.16, 13,675.58 and 4,957.66 is: 7,433.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.16 : 13,675.58 = 4,957.66 : x
  2. Step 2: Convert to fraction form
    9,121.16/13,675.58 = 4,957.66/x
  3. Step 3: Cross multiply
    9,121.16x = 13,675.58 × 4,957.66
  4. Step 4: Simplify right side
    9,121.16x = 67,798,837.80
  5. Step 5: Solve for x
    x = 67,798,837.80/9,121.16
  6. Step 6: Final answer
    x = 7,433.14

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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.