Home / 9,005.40-13,512.15-3,166.20

Finding the Fourth Proportional to 9,005.40, 13,512.15 and 3,166.20

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Solution

The fourth proportional to 9,005.40, 13,512.15 and 3,166.20 is: 4,750.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,005.40 : 13,512.15 = 3,166.20 : x
  2. Step 2: Convert to fraction form
    9,005.40/13,512.15 = 3,166.20/x
  3. Step 3: Cross multiply
    9,005.40x = 13,512.15 × 3,166.20
  4. Step 4: Simplify right side
    9,005.40x = 42,782,169.33
  5. Step 5: Solve for x
    x = 42,782,169.33/9,005.40
  6. Step 6: Final answer
    x = 4,750.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.