Home / 11,029.56-15,214.68-6,988.97

Finding the Fourth Proportional to 11,029.56, 15,214.68 and 6,988.97

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Solution

The fourth proportional to 11,029.56, 15,214.68 and 6,988.97 is: 9,640.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,029.56 : 15,214.68 = 6,988.97 : x
  2. Step 2: Convert to fraction form
    11,029.56/15,214.68 = 6,988.97/x
  3. Step 3: Cross multiply
    11,029.56x = 15,214.68 × 6,988.97
  4. Step 4: Simplify right side
    11,029.56x = 106,334,866.01
  5. Step 5: Solve for x
    x = 106,334,866.01/11,029.56
  6. Step 6: Final answer
    x = 9,640.90

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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.