Home / 15,467.76-21,351.04-9,180.12

Finding the Fourth Proportional to 15,467.76, 21,351.04 and 9,180.12

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Solution

The fourth proportional to 15,467.76, 21,351.04 and 9,180.12 is: 12,671.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,467.76 : 21,351.04 = 9,180.12 : x
  2. Step 2: Convert to fraction form
    15,467.76/21,351.04 = 9,180.12/x
  3. Step 3: Cross multiply
    15,467.76x = 21,351.04 × 9,180.12
  4. Step 4: Simplify right side
    15,467.76x = 196,005,109.32
  5. Step 5: Solve for x
    x = 196,005,109.32/15,467.76
  6. Step 6: Final answer
    x = 12,671.85

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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.