Home / 15,523.02-21,422.26-8,449.92

Finding the Fourth Proportional to 15,523.02, 21,422.26 and 8,449.92

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Solution

The fourth proportional to 15,523.02, 21,422.26 and 8,449.92 is: 11,661.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,523.02 : 21,422.26 = 8,449.92 : x
  2. Step 2: Convert to fraction form
    15,523.02/21,422.26 = 8,449.92/x
  3. Step 3: Cross multiply
    15,523.02x = 21,422.26 × 8,449.92
  4. Step 4: Simplify right side
    15,523.02x = 181,016,383.22
  5. Step 5: Solve for x
    x = 181,016,383.22/15,523.02
  6. Step 6: Final answer
    x = 11,661.16

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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.