Home / 11,507.08-15,883.68-7,974.94

Finding the Fourth Proportional to 11,507.08, 15,883.68 and 7,974.94

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Solution

The fourth proportional to 11,507.08, 15,883.68 and 7,974.94 is: 11,008.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,507.08 : 15,883.68 = 7,974.94 : x
  2. Step 2: Convert to fraction form
    11,507.08/15,883.68 = 7,974.94/x
  3. Step 3: Cross multiply
    11,507.08x = 15,883.68 × 7,974.94
  4. Step 4: Simplify right side
    11,507.08x = 126,671,394.98
  5. Step 5: Solve for x
    x = 126,671,394.98/11,507.08
  6. Step 6: Final answer
    x = 11,008.13

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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.