Home / 13,134.69-18,109.03-9,546.70

Finding the Fourth Proportional to 13,134.69, 18,109.03 and 9,546.70

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Solution

The fourth proportional to 13,134.69, 18,109.03 and 9,546.70 is: 13,162.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,134.69 : 18,109.03 = 9,546.70 : x
  2. Step 2: Convert to fraction form
    13,134.69/18,109.03 = 9,546.70/x
  3. Step 3: Cross multiply
    13,134.69x = 18,109.03 × 9,546.70
  4. Step 4: Simplify right side
    13,134.69x = 172,881,476.70
  5. Step 5: Solve for x
    x = 172,881,476.70/13,134.69
  6. Step 6: Final answer
    x = 13,162.20

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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.