Home / 10,851.20-16,276.80-4,274

Finding the Fourth Proportional to 10,851.20, 16,276.80 and 4,274

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Solution

The fourth proportional to 10,851.20, 16,276.80 and 4,274 is: 6,411

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,851.20 : 16,276.80 = 4,274 : x
  2. Step 2: Convert to fraction form
    10,851.20/16,276.80 = 4,274/x
  3. Step 3: Cross multiply
    10,851.20x = 16,276.80 × 4,274
  4. Step 4: Simplify right side
    10,851.20x = 69,567,043.20
  5. Step 5: Solve for x
    x = 69,567,043.20/10,851.20
  6. Step 6: Final answer
    x = 6,411

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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.