Home / 13,443.21-18,550.49-7,472.97

Finding the Fourth Proportional to 13,443.21, 18,550.49 and 7,472.97

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Solution

The fourth proportional to 13,443.21, 18,550.49 and 7,472.97 is: 10,312.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443.21 : 18,550.49 = 7,472.97 : x
  2. Step 2: Convert to fraction form
    13,443.21/18,550.49 = 7,472.97/x
  3. Step 3: Cross multiply
    13,443.21x = 18,550.49 × 7,472.97
  4. Step 4: Simplify right side
    13,443.21x = 138,627,217.89
  5. Step 5: Solve for x
    x = 138,627,217.89/13,443.21
  6. Step 6: Final answer
    x = 10,312.06

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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.