Home / 13,350.17-18,423.62-7,382.22

Finding the Fourth Proportional to 13,350.17, 18,423.62 and 7,382.22

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Solution

The fourth proportional to 13,350.17, 18,423.62 and 7,382.22 is: 10,187.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,350.17 : 18,423.62 = 7,382.22 : x
  2. Step 2: Convert to fraction form
    13,350.17/18,423.62 = 7,382.22/x
  3. Step 3: Cross multiply
    13,350.17x = 18,423.62 × 7,382.22
  4. Step 4: Simplify right side
    13,350.17x = 136,007,179.13
  5. Step 5: Solve for x
    x = 136,007,179.13/13,350.17
  6. Step 6: Final answer
    x = 10,187.68

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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.