Home / 11,020.80-16,506.90-6,630.60

Finding the Fourth Proportional to 11,020.80, 16,506.90 and 6,630.60

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Solution

The fourth proportional to 11,020.80, 16,506.90 and 6,630.60 is: 9,931.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,020.80 : 16,506.90 = 6,630.60 : x
  2. Step 2: Convert to fraction form
    11,020.80/16,506.90 = 6,630.60/x
  3. Step 3: Cross multiply
    11,020.80x = 16,506.90 × 6,630.60
  4. Step 4: Simplify right side
    11,020.80x = 109,450,651.14
  5. Step 5: Solve for x
    x = 109,450,651.14/11,020.80
  6. Step 6: Final answer
    x = 9,931.28

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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.