Home / 11,287.35-15,589.67-10,631.25

Finding the Fourth Proportional to 11,287.35, 15,589.67 and 10,631.25

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Solution

The fourth proportional to 11,287.35, 15,589.67 and 10,631.25 is: 14,683.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,287.35 : 15,589.67 = 10,631.25 : x
  2. Step 2: Convert to fraction form
    11,287.35/15,589.67 = 10,631.25/x
  3. Step 3: Cross multiply
    11,287.35x = 15,589.67 × 10,631.25
  4. Step 4: Simplify right side
    11,287.35x = 165,737,626.03
  5. Step 5: Solve for x
    x = 165,737,626.03/11,287.35
  6. Step 6: Final answer
    x = 14,683.48

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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.