Home / 11,290.20-16,946.10-5,749.80

Finding the Fourth Proportional to 11,290.20, 16,946.10 and 5,749.80

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Solution

The fourth proportional to 11,290.20, 16,946.10 and 5,749.80 is: 8,630.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,290.20 : 16,946.10 = 5,749.80 : x
  2. Step 2: Convert to fraction form
    11,290.20/16,946.10 = 5,749.80/x
  3. Step 3: Cross multiply
    11,290.20x = 16,946.10 × 5,749.80
  4. Step 4: Simplify right side
    11,290.20x = 97,436,685.78
  5. Step 5: Solve for x
    x = 97,436,685.78/11,290.20
  6. Step 6: Final answer
    x = 8,630.20

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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.