Home / 13,256.80-18,294.13-7,288.41

Finding the Fourth Proportional to 13,256.80, 18,294.13 and 7,288.41

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Solution

The fourth proportional to 13,256.80, 18,294.13 and 7,288.41 is: 10,057.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,256.80 : 18,294.13 = 7,288.41 : x
  2. Step 2: Convert to fraction form
    13,256.80/18,294.13 = 7,288.41/x
  3. Step 3: Cross multiply
    13,256.80x = 18,294.13 × 7,288.41
  4. Step 4: Simplify right side
    13,256.80x = 133,335,120.03
  5. Step 5: Solve for x
    x = 133,335,120.03/13,256.80
  6. Step 6: Final answer
    x = 10,057.87

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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.