Home / 15,661.22-21,613.38-9,288.26

Finding the Fourth Proportional to 15,661.22, 21,613.38 and 9,288.26

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Solution

The fourth proportional to 15,661.22, 21,613.38 and 9,288.26 is: 12,818.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,661.22 : 21,613.38 = 9,288.26 : x
  2. Step 2: Convert to fraction form
    15,661.22/21,613.38 = 9,288.26/x
  3. Step 3: Cross multiply
    15,661.22x = 21,613.38 × 9,288.26
  4. Step 4: Simplify right side
    15,661.22x = 200,750,692.92
  5. Step 5: Solve for x
    x = 200,750,692.92/15,661.22
  6. Step 6: Final answer
    x = 12,818.33

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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.