Home / 11,077.80-16,612.30-3,680.20

Finding the Fourth Proportional to 11,077.80, 16,612.30 and 3,680.20

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Solution

The fourth proportional to 11,077.80, 16,612.30 and 3,680.20 is: 5,518.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,077.80 : 16,612.30 = 3,680.20 : x
  2. Step 2: Convert to fraction form
    11,077.80/16,612.30 = 3,680.20/x
  3. Step 3: Cross multiply
    11,077.80x = 16,612.30 × 3,680.20
  4. Step 4: Simplify right side
    11,077.80x = 61,136,586.46
  5. Step 5: Solve for x
    x = 61,136,586.46/11,077.80
  6. Step 6: Final answer
    x = 5,518.84

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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.