Home / 13,170.43-18,178.80-7,508.13

Finding the Fourth Proportional to 13,170.43, 18,178.80 and 7,508.13

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Solution

The fourth proportional to 13,170.43, 18,178.80 and 7,508.13 is: 10,363.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.43 : 18,178.80 = 7,508.13 : x
  2. Step 2: Convert to fraction form
    13,170.43/18,178.80 = 7,508.13/x
  3. Step 3: Cross multiply
    13,170.43x = 18,178.80 × 7,508.13
  4. Step 4: Simplify right side
    13,170.43x = 136,488,697.32
  5. Step 5: Solve for x
    x = 136,488,697.32/13,170.43
  6. Step 6: Final answer
    x = 10,363.27

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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.