Home / 9,154.13-12,632.64-5,175.95

Finding the Fourth Proportional to 9,154.13, 12,632.64 and 5,175.95

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Solution

The fourth proportional to 9,154.13, 12,632.64 and 5,175.95 is: 7,142.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,154.13 : 12,632.64 = 5,175.95 : x
  2. Step 2: Convert to fraction form
    9,154.13/12,632.64 = 5,175.95/x
  3. Step 3: Cross multiply
    9,154.13x = 12,632.64 × 5,175.95
  4. Step 4: Simplify right side
    9,154.13x = 65,385,913.01
  5. Step 5: Solve for x
    x = 65,385,913.01/9,154.13
  6. Step 6: Final answer
    x = 7,142.78

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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.