Home / 15,001.27-20,701.62-8,287.37

Finding the Fourth Proportional to 15,001.27, 20,701.62 and 8,287.37

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Solution

The fourth proportional to 15,001.27, 20,701.62 and 8,287.37 is: 11,436.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,001.27 : 20,701.62 = 8,287.37 : x
  2. Step 2: Convert to fraction form
    15,001.27/20,701.62 = 8,287.37/x
  3. Step 3: Cross multiply
    15,001.27x = 20,701.62 × 8,287.37
  4. Step 4: Simplify right side
    15,001.27x = 171,561,881.03
  5. Step 5: Solve for x
    x = 171,561,881.03/15,001.27
  6. Step 6: Final answer
    x = 11,436.49

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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.