Home / 15,207.32-20,999.32-9,551.90

Finding the Fourth Proportional to 15,207.32, 20,999.32 and 9,551.90

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Solution

The fourth proportional to 15,207.32, 20,999.32 and 9,551.90 is: 13,189.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,207.32 : 20,999.32 = 9,551.90 : x
  2. Step 2: Convert to fraction form
    15,207.32/20,999.32 = 9,551.90/x
  3. Step 3: Cross multiply
    15,207.32x = 20,999.32 × 9,551.90
  4. Step 4: Simplify right side
    15,207.32x = 200,583,433.33
  5. Step 5: Solve for x
    x = 200,583,433.33/15,207.32
  6. Step 6: Final answer
    x = 13,189.92

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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.