Home / 10,821.87-16,235.15-3,325.46

Finding the Fourth Proportional to 10,821.87, 16,235.15 and 3,325.46

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Solution

The fourth proportional to 10,821.87, 16,235.15 and 3,325.46 is: 4,988.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.87 : 16,235.15 = 3,325.46 : x
  2. Step 2: Convert to fraction form
    10,821.87/16,235.15 = 3,325.46/x
  3. Step 3: Cross multiply
    10,821.87x = 16,235.15 × 3,325.46
  4. Step 4: Simplify right side
    10,821.87x = 53,989,244.12
  5. Step 5: Solve for x
    x = 53,989,244.12/10,821.87
  6. Step 6: Final answer
    x = 4,988.90

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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.