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Finding the Fourth Proportional to 8,940.80, 13,395.98 and 5,816.04

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Solution

The fourth proportional to 8,940.80, 13,395.98 and 5,816.04 is: 8,714.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.80 : 13,395.98 = 5,816.04 : x
  2. Step 2: Convert to fraction form
    8,940.80/13,395.98 = 5,816.04/x
  3. Step 3: Cross multiply
    8,940.80x = 13,395.98 × 5,816.04
  4. Step 4: Simplify right side
    8,940.80x = 77,911,555.52
  5. Step 5: Solve for x
    x = 77,911,555.52/8,940.80
  6. Step 6: Final answer
    x = 8,714.16

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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.