Home / 13,334.97-18,404.51-7,749.21

Finding the Fourth Proportional to 13,334.97, 18,404.51 and 7,749.21

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Solution

The fourth proportional to 13,334.97, 18,404.51 and 7,749.21 is: 10,695.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,334.97 : 18,404.51 = 7,749.21 : x
  2. Step 2: Convert to fraction form
    13,334.97/18,404.51 = 7,749.21/x
  3. Step 3: Cross multiply
    13,334.97x = 18,404.51 × 7,749.21
  4. Step 4: Simplify right side
    13,334.97x = 142,620,374.19
  5. Step 5: Solve for x
    x = 142,620,374.19/13,334.97
  6. Step 6: Final answer
    x = 10,695.22

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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.