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Finding the Fourth Proportional to 7,271.04, 10,917.12 and 6,555.84

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Solution

The fourth proportional to 7,271.04, 10,917.12 and 6,555.84 is: 9,843.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,271.04 : 10,917.12 = 6,555.84 : x
  2. Step 2: Convert to fraction form
    7,271.04/10,917.12 = 6,555.84/x
  3. Step 3: Cross multiply
    7,271.04x = 10,917.12 × 6,555.84
  4. Step 4: Simplify right side
    7,271.04x = 71,570,891.98
  5. Step 5: Solve for x
    x = 71,570,891.98/7,271.04
  6. Step 6: Final answer
    x = 9,843.28

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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.