Home / 15,889.41-21,927.36-8,719.37

Finding the Fourth Proportional to 15,889.41, 21,927.36 and 8,719.37

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Solution

The fourth proportional to 15,889.41, 21,927.36 and 8,719.37 is: 12,032.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,889.41 : 21,927.36 = 8,719.37 : x
  2. Step 2: Convert to fraction form
    15,889.41/21,927.36 = 8,719.37/x
  3. Step 3: Cross multiply
    15,889.41x = 21,927.36 × 8,719.37
  4. Step 4: Simplify right side
    15,889.41x = 191,192,655.33
  5. Step 5: Solve for x
    x = 191,192,655.33/15,889.41
  6. Step 6: Final answer
    x = 12,032.71

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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.