Home / 15,370.28-21,216.30-9,082.25

Finding the Fourth Proportional to 15,370.28, 21,216.30 and 9,082.25

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Solution

The fourth proportional to 15,370.28, 21,216.30 and 9,082.25 is: 12,536.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,370.28 : 21,216.30 = 9,082.25 : x
  2. Step 2: Convert to fraction form
    15,370.28/21,216.30 = 9,082.25/x
  3. Step 3: Cross multiply
    15,370.28x = 21,216.30 × 9,082.25
  4. Step 4: Simplify right side
    15,370.28x = 192,691,740.68
  5. Step 5: Solve for x
    x = 192,691,740.68/15,370.28
  6. Step 6: Final answer
    x = 12,536.64

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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.