Home / 10,889.58-15,036.09-8,367.71

Finding the Fourth Proportional to 10,889.58, 15,036.09 and 8,367.71

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Solution

The fourth proportional to 10,889.58, 15,036.09 and 8,367.71 is: 11,553.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889.58 : 15,036.09 = 8,367.71 : x
  2. Step 2: Convert to fraction form
    10,889.58/15,036.09 = 8,367.71/x
  3. Step 3: Cross multiply
    10,889.58x = 15,036.09 × 8,367.71
  4. Step 4: Simplify right side
    10,889.58x = 125,817,678.24
  5. Step 5: Solve for x
    x = 125,817,678.24/10,889.58
  6. Step 6: Final answer
    x = 11,553.95

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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.