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Finding the Fourth Proportional to 10,958.56, 15,123 and 6,242.92

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Solution

The fourth proportional to 10,958.56, 15,123 and 6,242.92 is: 8,615.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,958.56 : 15,123 = 6,242.92 : x
  2. Step 2: Convert to fraction form
    10,958.56/15,123 = 6,242.92/x
  3. Step 3: Cross multiply
    10,958.56x = 15,123 × 6,242.92
  4. Step 4: Simplify right side
    10,958.56x = 94,411,679.16
  5. Step 5: Solve for x
    x = 94,411,679.16/10,958.56
  6. Step 6: Final answer
    x = 8,615.34

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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.