Home / 9,012.54-13,521.26-8,145.04

Finding the Fourth Proportional to 9,012.54, 13,521.26 and 8,145.04

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Solution

The fourth proportional to 9,012.54, 13,521.26 and 8,145.04 is: 12,219.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,012.54 : 13,521.26 = 8,145.04 : x
  2. Step 2: Convert to fraction form
    9,012.54/13,521.26 = 8,145.04/x
  3. Step 3: Cross multiply
    9,012.54x = 13,521.26 × 8,145.04
  4. Step 4: Simplify right side
    9,012.54x = 110,131,203.55
  5. Step 5: Solve for x
    x = 110,131,203.55/9,012.54
  6. Step 6: Final answer
    x = 12,219.77

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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.