Home / 10,803.12-16,205.02-3,407.64

Finding the Fourth Proportional to 10,803.12, 16,205.02 and 3,407.64

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Solution

The fourth proportional to 10,803.12, 16,205.02 and 3,407.64 is: 5,111.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,803.12 : 16,205.02 = 3,407.64 : x
  2. Step 2: Convert to fraction form
    10,803.12/16,205.02 = 3,407.64/x
  3. Step 3: Cross multiply
    10,803.12x = 16,205.02 × 3,407.64
  4. Step 4: Simplify right side
    10,803.12x = 55,220,874.35
  5. Step 5: Solve for x
    x = 55,220,874.35/10,803.12
  6. Step 6: Final answer
    x = 5,111.57

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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.