Home / 15,251.72-21,047.73-8,537.18

Finding the Fourth Proportional to 15,251.72, 21,047.73 and 8,537.18

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Solution

The fourth proportional to 15,251.72, 21,047.73 and 8,537.18 is: 11,781.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,251.72 : 21,047.73 = 8,537.18 : x
  2. Step 2: Convert to fraction form
    15,251.72/21,047.73 = 8,537.18/x
  3. Step 3: Cross multiply
    15,251.72x = 21,047.73 × 8,537.18
  4. Step 4: Simplify right side
    15,251.72x = 179,688,259.60
  5. Step 5: Solve for x
    x = 179,688,259.60/15,251.72
  6. Step 6: Final answer
    x = 11,781.51

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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.