Home / 15,218.37-21,003.75-9,251.91

Finding the Fourth Proportional to 15,218.37, 21,003.75 and 9,251.91

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Solution

The fourth proportional to 15,218.37, 21,003.75 and 9,251.91 is: 12,769.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,218.37 : 21,003.75 = 9,251.91 : x
  2. Step 2: Convert to fraction form
    15,218.37/21,003.75 = 9,251.91/x
  3. Step 3: Cross multiply
    15,218.37x = 21,003.75 × 9,251.91
  4. Step 4: Simplify right side
    15,218.37x = 194,324,804.66
  5. Step 5: Solve for x
    x = 194,324,804.66/15,218.37
  6. Step 6: Final answer
    x = 12,769.09

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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.