Home / 15,292.68-21,103.91-8,923.65

Finding the Fourth Proportional to 15,292.68, 21,103.91 and 8,923.65

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Solution

The fourth proportional to 15,292.68, 21,103.91 and 8,923.65 is: 12,314.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,292.68 : 21,103.91 = 8,923.65 : x
  2. Step 2: Convert to fraction form
    15,292.68/21,103.91 = 8,923.65/x
  3. Step 3: Cross multiply
    15,292.68x = 21,103.91 × 8,923.65
  4. Step 4: Simplify right side
    15,292.68x = 188,323,906.47
  5. Step 5: Solve for x
    x = 188,323,906.47/15,292.68
  6. Step 6: Final answer
    x = 12,314.64

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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.