Home / 9,009.20-13,506.60-3,810.80

Finding the Fourth Proportional to 9,009.20, 13,506.60 and 3,810.80

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Solution

The fourth proportional to 9,009.20, 13,506.60 and 3,810.80 is: 5,713.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,009.20 : 13,506.60 = 3,810.80 : x
  2. Step 2: Convert to fraction form
    9,009.20/13,506.60 = 3,810.80/x
  3. Step 3: Cross multiply
    9,009.20x = 13,506.60 × 3,810.80
  4. Step 4: Simplify right side
    9,009.20x = 51,470,951.28
  5. Step 5: Solve for x
    x = 51,470,951.28/9,009.20
  6. Step 6: Final answer
    x = 5,713.15

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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.