Home / 9,388.89-12,957.57-5,197.14

Finding the Fourth Proportional to 9,388.89, 12,957.57 and 5,197.14

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Solution

The fourth proportional to 9,388.89, 12,957.57 and 5,197.14 is: 7,172.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,388.89 : 12,957.57 = 5,197.14 : x
  2. Step 2: Convert to fraction form
    9,388.89/12,957.57 = 5,197.14/x
  3. Step 3: Cross multiply
    9,388.89x = 12,957.57 × 5,197.14
  4. Step 4: Simplify right side
    9,388.89x = 67,342,305.35
  5. Step 5: Solve for x
    x = 67,342,305.35/9,388.89
  6. Step 6: Final answer
    x = 7,172.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.