Home / 11,635.20-16,061.76-6,921.12

Finding the Fourth Proportional to 11,635.20, 16,061.76 and 6,921.12

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Solution

The fourth proportional to 11,635.20, 16,061.76 and 6,921.12 is: 9,554.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,635.20 : 16,061.76 = 6,921.12 : x
  2. Step 2: Convert to fraction form
    11,635.20/16,061.76 = 6,921.12/x
  3. Step 3: Cross multiply
    11,635.20x = 16,061.76 × 6,921.12
  4. Step 4: Simplify right side
    11,635.20x = 111,165,368.37
  5. Step 5: Solve for x
    x = 111,165,368.37/11,635.20
  6. Step 6: Final answer
    x = 9,554.23

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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.