Home / 15,563.92-21,480.06-8,850.56

Finding the Fourth Proportional to 15,563.92, 21,480.06 and 8,850.56

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Solution

The fourth proportional to 15,563.92, 21,480.06 and 8,850.56 is: 12,214.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,563.92 : 21,480.06 = 8,850.56 : x
  2. Step 2: Convert to fraction form
    15,563.92/21,480.06 = 8,850.56/x
  3. Step 3: Cross multiply
    15,563.92x = 21,480.06 × 8,850.56
  4. Step 4: Simplify right side
    15,563.92x = 190,110,490.47
  5. Step 5: Solve for x
    x = 190,110,490.47/15,563.92
  6. Step 6: Final answer
    x = 12,214.82

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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.