Home / 15,781.33-21,777.50-9,062.23

Finding the Fourth Proportional to 15,781.33, 21,777.50 and 9,062.23

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Solution

The fourth proportional to 15,781.33, 21,777.50 and 9,062.23 is: 12,505.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,781.33 : 21,777.50 = 9,062.23 : x
  2. Step 2: Convert to fraction form
    15,781.33/21,777.50 = 9,062.23/x
  3. Step 3: Cross multiply
    15,781.33x = 21,777.50 × 9,062.23
  4. Step 4: Simplify right side
    15,781.33x = 197,352,682.04
  5. Step 5: Solve for x
    x = 197,352,682.04/15,781.33
  6. Step 6: Final answer
    x = 12,505.46

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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.