Home / 11,585.30-15,989.42-7,336.75

Finding the Fourth Proportional to 11,585.30, 15,989.42 and 7,336.75

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Solution

The fourth proportional to 11,585.30, 15,989.42 and 7,336.75 is: 10,125.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,585.30 : 15,989.42 = 7,336.75 : x
  2. Step 2: Convert to fraction form
    11,585.30/15,989.42 = 7,336.75/x
  3. Step 3: Cross multiply
    11,585.30x = 15,989.42 × 7,336.75
  4. Step 4: Simplify right side
    11,585.30x = 117,310,344.26
  5. Step 5: Solve for x
    x = 117,310,344.26/11,585.30
  6. Step 6: Final answer
    x = 10,125.79

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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.