Home / 13,243.43-18,276.17-7,275.35

Finding the Fourth Proportional to 13,243.43, 18,276.17 and 7,275.35

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Solution

The fourth proportional to 13,243.43, 18,276.17 and 7,275.35 is: 10,040.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,243.43 : 18,276.17 = 7,275.35 : x
  2. Step 2: Convert to fraction form
    13,243.43/18,276.17 = 7,275.35/x
  3. Step 3: Cross multiply
    13,243.43x = 18,276.17 × 7,275.35
  4. Step 4: Simplify right side
    13,243.43x = 132,965,542.72
  5. Step 5: Solve for x
    x = 132,965,542.72/13,243.43
  6. Step 6: Final answer
    x = 10,040.11

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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.