Home / 13,243.73-18,274.35-7,275.65

Finding the Fourth Proportional to 13,243.73, 18,274.35 and 7,275.65

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Solution

The fourth proportional to 13,243.73, 18,274.35 and 7,275.65 is: 10,039.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,243.73 : 18,274.35 = 7,275.65 : x
  2. Step 2: Convert to fraction form
    13,243.73/18,274.35 = 7,275.65/x
  3. Step 3: Cross multiply
    13,243.73x = 18,274.35 × 7,275.65
  4. Step 4: Simplify right side
    13,243.73x = 132,957,683.21
  5. Step 5: Solve for x
    x = 132,957,683.21/13,243.73
  6. Step 6: Final answer
    x = 10,039.30

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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.