Home / 10,851.40-16,269.80-4,274.20

Finding the Fourth Proportional to 10,851.40, 16,269.80 and 4,274.20

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Solution

The fourth proportional to 10,851.40, 16,269.80 and 4,274.20 is: 6,408.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,851.40 : 16,269.80 = 4,274.20 : x
  2. Step 2: Convert to fraction form
    10,851.40/16,269.80 = 4,274.20/x
  3. Step 3: Cross multiply
    10,851.40x = 16,269.80 × 4,274.20
  4. Step 4: Simplify right side
    10,851.40x = 69,540,379.16
  5. Step 5: Solve for x
    x = 69,540,379.16/10,851.40
  6. Step 6: Final answer
    x = 6,408.42

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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.