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Finding the Fourth Proportional to 7,603.30, 11,404.95 and 7,311.70

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Solution

The fourth proportional to 7,603.30, 11,404.95 and 7,311.70 is: 10,967.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,603.30 : 11,404.95 = 7,311.70 : x
  2. Step 2: Convert to fraction form
    7,603.30/11,404.95 = 7,311.70/x
  3. Step 3: Cross multiply
    7,603.30x = 11,404.95 × 7,311.70
  4. Step 4: Simplify right side
    7,603.30x = 83,389,572.92
  5. Step 5: Solve for x
    x = 83,389,572.92/7,603.30
  6. Step 6: Final answer
    x = 10,967.55

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Similar ratio
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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.