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Finding the Fourth Proportional to 7,691.04, 11,479.02 and 7,075.44

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Solution

The fourth proportional to 7,691.04, 11,479.02 and 7,075.44 is: 10,560.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,691.04 : 11,479.02 = 7,075.44 : x
  2. Step 2: Convert to fraction form
    7,691.04/11,479.02 = 7,075.44/x
  3. Step 3: Cross multiply
    7,691.04x = 11,479.02 × 7,075.44
  4. Step 4: Simplify right side
    7,691.04x = 81,219,117.27
  5. Step 5: Solve for x
    x = 81,219,117.27/7,691.04
  6. Step 6: Final answer
    x = 10,560.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.