Home / 15,889.44-21,927.84-8,719.68

Finding the Fourth Proportional to 15,889.44, 21,927.84 and 8,719.68

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Solution

The fourth proportional to 15,889.44, 21,927.84 and 8,719.68 is: 12,033.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,889.44 : 21,927.84 = 8,719.68 : x
  2. Step 2: Convert to fraction form
    15,889.44/21,927.84 = 8,719.68/x
  3. Step 3: Cross multiply
    15,889.44x = 21,927.84 × 8,719.68
  4. Step 4: Simplify right side
    15,889.44x = 191,203,747.89
  5. Step 5: Solve for x
    x = 191,203,747.89/15,889.44
  6. Step 6: Final answer
    x = 12,033.38

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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.