Home / 11,013.12-15,177.60-7,476.48

Finding the Fourth Proportional to 11,013.12, 15,177.60 and 7,476.48

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Solution

The fourth proportional to 11,013.12, 15,177.60 and 7,476.48 is: 10,303.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,013.12 : 15,177.60 = 7,476.48 : x
  2. Step 2: Convert to fraction form
    11,013.12/15,177.60 = 7,476.48/x
  3. Step 3: Cross multiply
    11,013.12x = 15,177.60 × 7,476.48
  4. Step 4: Simplify right side
    11,013.12x = 113,475,022.85
  5. Step 5: Solve for x
    x = 113,475,022.85/11,013.12
  6. Step 6: Final answer
    x = 10,303.62

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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.