Home / 10,821.21-16,222.01-4,245.63

Finding the Fourth Proportional to 10,821.21, 16,222.01 and 4,245.63

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Solution

The fourth proportional to 10,821.21, 16,222.01 and 4,245.63 is: 6,364.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.21 : 16,222.01 = 4,245.63 : x
  2. Step 2: Convert to fraction form
    10,821.21/16,222.01 = 4,245.63/x
  3. Step 3: Cross multiply
    10,821.21x = 16,222.01 × 4,245.63
  4. Step 4: Simplify right side
    10,821.21x = 68,872,602.10
  5. Step 5: Solve for x
    x = 68,872,602.10/10,821.21
  6. Step 6: Final answer
    x = 6,364.60

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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.