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Finding the Fourth Proportional to 7,745.03, 10,742.98 and 7,479.52

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Solution

The fourth proportional to 7,745.03, 10,742.98 and 7,479.52 is: 10,374.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,745.03 : 10,742.98 = 7,479.52 : x
  2. Step 2: Convert to fraction form
    7,745.03/10,742.98 = 7,479.52/x
  3. Step 3: Cross multiply
    7,745.03x = 10,742.98 × 7,479.52
  4. Step 4: Simplify right side
    7,745.03x = 80,352,333.77
  5. Step 5: Solve for x
    x = 80,352,333.77/7,745.03
  6. Step 6: Final answer
    x = 10,374.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.