Home / 15,251.58-21,047.56-8,537.15

Finding the Fourth Proportional to 15,251.58, 21,047.56 and 8,537.15

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Solution

The fourth proportional to 15,251.58, 21,047.56 and 8,537.15 is: 11,781.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,251.58 : 21,047.56 = 8,537.15 : x
  2. Step 2: Convert to fraction form
    15,251.58/21,047.56 = 8,537.15/x
  3. Step 3: Cross multiply
    15,251.58x = 21,047.56 × 8,537.15
  4. Step 4: Simplify right side
    15,251.58x = 179,686,208.13
  5. Step 5: Solve for x
    x = 179,686,208.13/15,251.58
  6. Step 6: Final answer
    x = 11,781.48

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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.