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Finding the Fourth Proportional to 13,330.62, 18,396.45 and 7,741.62

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Solution

The fourth proportional to 13,330.62, 18,396.45 and 7,741.62 is: 10,683.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.62 : 18,396.45 = 7,741.62 : x
  2. Step 2: Convert to fraction form
    13,330.62/18,396.45 = 7,741.62/x
  3. Step 3: Cross multiply
    13,330.62x = 18,396.45 × 7,741.62
  4. Step 4: Simplify right side
    13,330.62x = 142,418,325.25
  5. Step 5: Solve for x
    x = 142,418,325.25/13,330.62
  6. Step 6: Final answer
    x = 10,683.55

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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.