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Finding the Fourth Proportional to 7,369.60, 11,054.40 and 7,223.80

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Solution

The fourth proportional to 7,369.60, 11,054.40 and 7,223.80 is: 10,835.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,369.60 : 11,054.40 = 7,223.80 : x
  2. Step 2: Convert to fraction form
    7,369.60/11,054.40 = 7,223.80/x
  3. Step 3: Cross multiply
    7,369.60x = 11,054.40 × 7,223.80
  4. Step 4: Simplify right side
    7,369.60x = 79,854,774.72
  5. Step 5: Solve for x
    x = 79,854,774.72/7,369.60
  6. Step 6: Final answer
    x = 10,835.70

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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.