Home / 9,389.16-12,957.18-5,197.56

Finding the Fourth Proportional to 9,389.16, 12,957.18 and 5,197.56

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Solution

The fourth proportional to 9,389.16, 12,957.18 and 5,197.56 is: 7,172.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,389.16 : 12,957.18 = 5,197.56 : x
  2. Step 2: Convert to fraction form
    9,389.16/12,957.18 = 5,197.56/x
  3. Step 3: Cross multiply
    9,389.16x = 12,957.18 × 5,197.56
  4. Step 4: Simplify right side
    9,389.16x = 67,345,720.48
  5. Step 5: Solve for x
    x = 67,345,720.48/9,389.16
  6. Step 6: Final answer
    x = 7,172.71

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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.