Home / 12,387.28-17,093.32-7,350.64

Finding the Fourth Proportional to 12,387.28, 17,093.32 and 7,350.64

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Solution

The fourth proportional to 12,387.28, 17,093.32 and 7,350.64 is: 10,143.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387.28 : 17,093.32 = 7,350.64 : x
  2. Step 2: Convert to fraction form
    12,387.28/17,093.32 = 7,350.64/x
  3. Step 3: Cross multiply
    12,387.28x = 17,093.32 × 7,350.64
  4. Step 4: Simplify right side
    12,387.28x = 125,646,841.72
  5. Step 5: Solve for x
    x = 125,646,841.72/12,387.28
  6. Step 6: Final answer
    x = 10,143.21

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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.