Home / 10,139.85-15,199.43-6,853.28

Finding the Fourth Proportional to 10,139.85, 15,199.43 and 6,853.28

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Solution

The fourth proportional to 10,139.85, 15,199.43 and 6,853.28 is: 10,272.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,139.85 : 15,199.43 = 6,853.28 : x
  2. Step 2: Convert to fraction form
    10,139.85/15,199.43 = 6,853.28/x
  3. Step 3: Cross multiply
    10,139.85x = 15,199.43 × 6,853.28
  4. Step 4: Simplify right side
    10,139.85x = 104,165,839.37
  5. Step 5: Solve for x
    x = 104,165,839.37/10,139.85
  6. Step 6: Final answer
    x = 10,272.92

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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.