Home / 15,216.48-20,998.77-8,502.12

Finding the Fourth Proportional to 15,216.48, 20,998.77 and 8,502.12

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Solution

The fourth proportional to 15,216.48, 20,998.77 and 8,502.12 is: 11,732.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,216.48 : 20,998.77 = 8,502.12 : x
  2. Step 2: Convert to fraction form
    15,216.48/20,998.77 = 8,502.12/x
  3. Step 3: Cross multiply
    15,216.48x = 20,998.77 × 8,502.12
  4. Step 4: Simplify right side
    15,216.48x = 178,534,062.39
  5. Step 5: Solve for x
    x = 178,534,062.39/15,216.48
  6. Step 6: Final answer
    x = 11,732.94

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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.