Home / 15,632.07-21,573.99-8,919.36

Finding the Fourth Proportional to 15,632.07, 21,573.99 and 8,919.36

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Solution

The fourth proportional to 15,632.07, 21,573.99 and 8,919.36 is: 12,309.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,632.07 : 21,573.99 = 8,919.36 : x
  2. Step 2: Convert to fraction form
    15,632.07/21,573.99 = 8,919.36/x
  3. Step 3: Cross multiply
    15,632.07x = 21,573.99 × 8,919.36
  4. Step 4: Simplify right side
    15,632.07x = 192,426,183.45
  5. Step 5: Solve for x
    x = 192,426,183.45/15,632.07
  6. Step 6: Final answer
    x = 12,309.71

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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.