Home / 13,404.75-18,501.17-7,743.15

Finding the Fourth Proportional to 13,404.75, 18,501.17 and 7,743.15

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Solution

The fourth proportional to 13,404.75, 18,501.17 and 7,743.15 is: 10,687.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,404.75 : 18,501.17 = 7,743.15 : x
  2. Step 2: Convert to fraction form
    13,404.75/18,501.17 = 7,743.15/x
  3. Step 3: Cross multiply
    13,404.75x = 18,501.17 × 7,743.15
  4. Step 4: Simplify right side
    13,404.75x = 143,257,334.49
  5. Step 5: Solve for x
    x = 143,257,334.49/13,404.75
  6. Step 6: Final answer
    x = 10,687.06

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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.