Home / 8,880.30-13,320.41-4,200.80

Finding the Fourth Proportional to 8,880.30, 13,320.41 and 4,200.80

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Solution

The fourth proportional to 8,880.30, 13,320.41 and 4,200.80 is: 6,301.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,880.30 : 13,320.41 = 4,200.80 : x
  2. Step 2: Convert to fraction form
    8,880.30/13,320.41 = 4,200.80/x
  3. Step 3: Cross multiply
    8,880.30x = 13,320.41 × 4,200.80
  4. Step 4: Simplify right side
    8,880.30x = 55,956,290.72
  5. Step 5: Solve for x
    x = 55,956,290.72/8,880.30
  6. Step 6: Final answer
    x = 6,301.17

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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.