Home / 15,329.91-21,150.92-8,614.83

Finding the Fourth Proportional to 15,329.91, 21,150.92 and 8,614.83

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Solution

The fourth proportional to 15,329.91, 21,150.92 and 8,614.83 is: 11,886.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,329.91 : 21,150.92 = 8,614.83 : x
  2. Step 2: Convert to fraction form
    15,329.91/21,150.92 = 8,614.83/x
  3. Step 3: Cross multiply
    15,329.91x = 21,150.92 × 8,614.83
  4. Step 4: Simplify right side
    15,329.91x = 182,211,537.07
  5. Step 5: Solve for x
    x = 182,211,537.07/15,329.91
  6. Step 6: Final answer
    x = 11,886.01

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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.