Home / 13,159.07-18,161.55-8,057.59

Finding the Fourth Proportional to 13,159.07, 18,161.55 and 8,057.59

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Solution

The fourth proportional to 13,159.07, 18,161.55 and 8,057.59 is: 11,120.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,159.07 : 18,161.55 = 8,057.59 : x
  2. Step 2: Convert to fraction form
    13,159.07/18,161.55 = 8,057.59/x
  3. Step 3: Cross multiply
    13,159.07x = 18,161.55 × 8,057.59
  4. Step 4: Simplify right side
    13,159.07x = 146,338,283.38
  5. Step 5: Solve for x
    x = 146,338,283.38/13,159.07
  6. Step 6: Final answer
    x = 11,120.72

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Double scale
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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.