Home / 10,872.06-15,033.63-8,630.04

Finding the Fourth Proportional to 10,872.06, 15,033.63 and 8,630.04

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Solution

The fourth proportional to 10,872.06, 15,033.63 and 8,630.04 is: 11,933.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,872.06 : 15,033.63 = 8,630.04 : x
  2. Step 2: Convert to fraction form
    10,872.06/15,033.63 = 8,630.04/x
  3. Step 3: Cross multiply
    10,872.06x = 15,033.63 × 8,630.04
  4. Step 4: Simplify right side
    10,872.06x = 129,740,828.25
  5. Step 5: Solve for x
    x = 129,740,828.25/10,872.06
  6. Step 6: Final answer
    x = 11,933.42

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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.