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Finding the Fourth Proportional to 8,349.84, 11,530.44 and 5,372.64

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Solution

The fourth proportional to 8,349.84, 11,530.44 and 5,372.64 is: 7,419.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,349.84 : 11,530.44 = 5,372.64 : x
  2. Step 2: Convert to fraction form
    8,349.84/11,530.44 = 5,372.64/x
  3. Step 3: Cross multiply
    8,349.84x = 11,530.44 × 5,372.64
  4. Step 4: Simplify right side
    8,349.84x = 61,948,903.16
  5. Step 5: Solve for x
    x = 61,948,903.16/8,349.84
  6. Step 6: Final answer
    x = 7,419.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.