Home / 10,921.80-16,382.82-5,988.77

Finding the Fourth Proportional to 10,921.80, 16,382.82 and 5,988.77

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Solution

The fourth proportional to 10,921.80, 16,382.82 and 5,988.77 is: 8,983.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921.80 : 16,382.82 = 5,988.77 : x
  2. Step 2: Convert to fraction form
    10,921.80/16,382.82 = 5,988.77/x
  3. Step 3: Cross multiply
    10,921.80x = 16,382.82 × 5,988.77
  4. Step 4: Simplify right side
    10,921.80x = 98,112,859.02
  5. Step 5: Solve for x
    x = 98,112,859.02/10,921.80
  6. Step 6: Final answer
    x = 8,983.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.