Home / 15,580.47-21,502.94-8,867.73

Finding the Fourth Proportional to 15,580.47, 21,502.94 and 8,867.73

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Solution

The fourth proportional to 15,580.47, 21,502.94 and 8,867.73 is: 12,238.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,580.47 : 21,502.94 = 8,867.73 : x
  2. Step 2: Convert to fraction form
    15,580.47/21,502.94 = 8,867.73/x
  3. Step 3: Cross multiply
    15,580.47x = 21,502.94 × 8,867.73
  4. Step 4: Simplify right side
    15,580.47x = 190,682,221.79
  5. Step 5: Solve for x
    x = 190,682,221.79/15,580.47
  6. Step 6: Final answer
    x = 12,238.54

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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.