Home / 8,880.48-13,320.80-2,640.56

Finding the Fourth Proportional to 8,880.48, 13,320.80 and 2,640.56

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Solution

The fourth proportional to 8,880.48, 13,320.80 and 2,640.56 is: 3,960.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,880.48 : 13,320.80 = 2,640.56 : x
  2. Step 2: Convert to fraction form
    8,880.48/13,320.80 = 2,640.56/x
  3. Step 3: Cross multiply
    8,880.48x = 13,320.80 × 2,640.56
  4. Step 4: Simplify right side
    8,880.48x = 35,174,371.65
  5. Step 5: Solve for x
    x = 35,174,371.65/8,880.48
  6. Step 6: Final answer
    x = 3,960.86

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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.