Home / 15,212.26-20,986.32-9,543.16

Finding the Fourth Proportional to 15,212.26, 20,986.32 and 9,543.16

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Solution

The fourth proportional to 15,212.26, 20,986.32 and 9,543.16 is: 13,165.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,212.26 : 20,986.32 = 9,543.16 : x
  2. Step 2: Convert to fraction form
    15,212.26/20,986.32 = 9,543.16/x
  3. Step 3: Cross multiply
    15,212.26x = 20,986.32 × 9,543.16
  4. Step 4: Simplify right side
    15,212.26x = 200,275,809.57
  5. Step 5: Solve for x
    x = 200,275,809.57/15,212.26
  6. Step 6: Final answer
    x = 13,165.42

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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.