Home / 13,342.12-18,410.54-7,963.57

Finding the Fourth Proportional to 13,342.12, 18,410.54 and 7,963.57

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Solution

The fourth proportional to 13,342.12, 18,410.54 and 7,963.57 is: 10,988.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,342.12 : 18,410.54 = 7,963.57 : x
  2. Step 2: Convert to fraction form
    13,342.12/18,410.54 = 7,963.57/x
  3. Step 3: Cross multiply
    13,342.12x = 18,410.54 × 7,963.57
  4. Step 4: Simplify right side
    13,342.12x = 146,613,584.21
  5. Step 5: Solve for x
    x = 146,613,584.21/13,342.12
  6. Step 6: Final answer
    x = 10,988.78

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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.