Home / 11,140.03-15,372.79-6,661.14

Finding the Fourth Proportional to 11,140.03, 15,372.79 and 6,661.14

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Solution

The fourth proportional to 11,140.03, 15,372.79 and 6,661.14 is: 9,192.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,140.03 : 15,372.79 = 6,661.14 : x
  2. Step 2: Convert to fraction form
    11,140.03/15,372.79 = 6,661.14/x
  3. Step 3: Cross multiply
    11,140.03x = 15,372.79 × 6,661.14
  4. Step 4: Simplify right side
    11,140.03x = 102,400,306.38
  5. Step 5: Solve for x
    x = 102,400,306.38/11,140.03
  6. Step 6: Final answer
    x = 9,192.10

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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.