Home / 15,251.56-21,047.59-8,537.16

Finding the Fourth Proportional to 15,251.56, 21,047.59 and 8,537.16

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Solution

The fourth proportional to 15,251.56, 21,047.59 and 8,537.16 is: 11,781.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,251.56 : 21,047.59 = 8,537.16 : x
  2. Step 2: Convert to fraction form
    15,251.56/21,047.59 = 8,537.16/x
  3. Step 3: Cross multiply
    15,251.56x = 21,047.59 × 8,537.16
  4. Step 4: Simplify right side
    15,251.56x = 179,686,643.44
  5. Step 5: Solve for x
    x = 179,686,643.44/15,251.56
  6. Step 6: Final answer
    x = 11,781.53

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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.