Home / 15,351.25-21,184.73-8,727.25

Finding the Fourth Proportional to 15,351.25, 21,184.73 and 8,727.25

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Solution

The fourth proportional to 15,351.25, 21,184.73 and 8,727.25 is: 12,043.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,351.25 : 21,184.73 = 8,727.25 : x
  2. Step 2: Convert to fraction form
    15,351.25/21,184.73 = 8,727.25/x
  3. Step 3: Cross multiply
    15,351.25x = 21,184.73 × 8,727.25
  4. Step 4: Simplify right side
    15,351.25x = 184,884,391.26
  5. Step 5: Solve for x
    x = 184,884,391.26/15,351.25
  6. Step 6: Final answer
    x = 12,043.61

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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.