Home / 15,889.35-21,927.24-8,719.39

Finding the Fourth Proportional to 15,889.35, 21,927.24 and 8,719.39

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Solution

The fourth proportional to 15,889.35, 21,927.24 and 8,719.39 is: 12,032.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,889.35 : 21,927.24 = 8,719.39 : x
  2. Step 2: Convert to fraction form
    15,889.35/21,927.24 = 8,719.39/x
  3. Step 3: Cross multiply
    15,889.35x = 21,927.24 × 8,719.39
  4. Step 4: Simplify right side
    15,889.35x = 191,192,073.51
  5. Step 5: Solve for x
    x = 191,192,073.51/15,889.35
  6. Step 6: Final answer
    x = 12,032.72

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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.