Home / 15,411.44-21,268.13-8,512.59

Finding the Fourth Proportional to 15,411.44, 21,268.13 and 8,512.59

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Solution

The fourth proportional to 15,411.44, 21,268.13 and 8,512.59 is: 11,747.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,411.44 : 21,268.13 = 8,512.59 : x
  2. Step 2: Convert to fraction form
    15,411.44/21,268.13 = 8,512.59/x
  3. Step 3: Cross multiply
    15,411.44x = 21,268.13 × 8,512.59
  4. Step 4: Simplify right side
    15,411.44x = 181,046,779.35
  5. Step 5: Solve for x
    x = 181,046,779.35/15,411.44
  6. Step 6: Final answer
    x = 11,747.56

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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.