Home / 13,159.26-18,160.85-7,495.78

Finding the Fourth Proportional to 13,159.26, 18,160.85 and 7,495.78

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Solution

The fourth proportional to 13,159.26, 18,160.85 and 7,495.78 is: 10,344.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,159.26 : 18,160.85 = 7,495.78 : x
  2. Step 2: Convert to fraction form
    13,159.26/18,160.85 = 7,495.78/x
  3. Step 3: Cross multiply
    13,159.26x = 18,160.85 × 7,495.78
  4. Step 4: Simplify right side
    13,159.26x = 136,129,736.21
  5. Step 5: Solve for x
    x = 136,129,736.21/13,159.26
  6. Step 6: Final answer
    x = 10,344.79

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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.