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Finding the Fourth Proportional to 7,308.55, 10,082.79 and 5,398.93

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Solution

The fourth proportional to 7,308.55, 10,082.79 and 5,398.93 is: 7,448.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,308.55 : 10,082.79 = 5,398.93 : x
  2. Step 2: Convert to fraction form
    7,308.55/10,082.79 = 5,398.93/x
  3. Step 3: Cross multiply
    7,308.55x = 10,082.79 × 5,398.93
  4. Step 4: Simplify right side
    7,308.55x = 54,436,277.41
  5. Step 5: Solve for x
    x = 54,436,277.41/7,308.55
  6. Step 6: Final answer
    x = 7,448.30

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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.