Home / 11,515.44-15,886.58-7,265.04

Finding the Fourth Proportional to 11,515.44, 15,886.58 and 7,265.04

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Solution

The fourth proportional to 11,515.44, 15,886.58 and 7,265.04 is: 10,022.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,515.44 : 15,886.58 = 7,265.04 : x
  2. Step 2: Convert to fraction form
    11,515.44/15,886.58 = 7,265.04/x
  3. Step 3: Cross multiply
    11,515.44x = 15,886.58 × 7,265.04
  4. Step 4: Simplify right side
    11,515.44x = 115,416,639.16
  5. Step 5: Solve for x
    x = 115,416,639.16/11,515.44
  6. Step 6: Final answer
    x = 10,022.77

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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.