Home / 11,620.56-16,040.40-7,151.84

Finding the Fourth Proportional to 11,620.56, 16,040.40 and 7,151.84

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Solution

The fourth proportional to 11,620.56, 16,040.40 and 7,151.84 is: 9,872.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,620.56 : 16,040.40 = 7,151.84 : x
  2. Step 2: Convert to fraction form
    11,620.56/16,040.40 = 7,151.84/x
  3. Step 3: Cross multiply
    11,620.56x = 16,040.40 × 7,151.84
  4. Step 4: Simplify right side
    11,620.56x = 114,718,374.34
  5. Step 5: Solve for x
    x = 114,718,374.34/11,620.56
  6. Step 6: Final answer
    x = 9,872.02

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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.