Home / 10,872.06-15,002.21-6,091.35

Finding the Fourth Proportional to 10,872.06, 15,002.21 and 6,091.35

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Solution

The fourth proportional to 10,872.06, 15,002.21 and 6,091.35 is: 8,405.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,872.06 : 15,002.21 = 6,091.35 : x
  2. Step 2: Convert to fraction form
    10,872.06/15,002.21 = 6,091.35/x
  3. Step 3: Cross multiply
    10,872.06x = 15,002.21 × 6,091.35
  4. Step 4: Simplify right side
    10,872.06x = 91,383,681.43
  5. Step 5: Solve for x
    x = 91,383,681.43/10,872.06
  6. Step 6: Final answer
    x = 8,405.37

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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.