Home / 10,008.72-15,013.06-6,112.20

Finding the Fourth Proportional to 10,008.72, 15,013.06 and 6,112.20

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Solution

The fourth proportional to 10,008.72, 15,013.06 and 6,112.20 is: 9,168.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,008.72 : 15,013.06 = 6,112.20 : x
  2. Step 2: Convert to fraction form
    10,008.72/15,013.06 = 6,112.20/x
  3. Step 3: Cross multiply
    10,008.72x = 15,013.06 × 6,112.20
  4. Step 4: Simplify right side
    10,008.72x = 91,762,825.33
  5. Step 5: Solve for x
    x = 91,762,825.33/10,008.72
  6. Step 6: Final answer
    x = 9,168.29

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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.