Home / 13,632.14-18,819.46-9,179.36

Finding the Fourth Proportional to 13,632.14, 18,819.46 and 9,179.36

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Solution

The fourth proportional to 13,632.14, 18,819.46 and 9,179.36 is: 12,672.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.14 : 18,819.46 = 9,179.36 : x
  2. Step 2: Convert to fraction form
    13,632.14/18,819.46 = 9,179.36/x
  3. Step 3: Cross multiply
    13,632.14x = 18,819.46 × 9,179.36
  4. Step 4: Simplify right side
    13,632.14x = 172,750,598.35
  5. Step 5: Solve for x
    x = 172,750,598.35/13,632.14
  6. Step 6: Final answer
    x = 12,672.30

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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.