Home / 13,402.19-18,495.11-7,433.96

Finding the Fourth Proportional to 13,402.19, 18,495.11 and 7,433.96

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Solution

The fourth proportional to 13,402.19, 18,495.11 and 7,433.96 is: 10,258.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,402.19 : 18,495.11 = 7,433.96 : x
  2. Step 2: Convert to fraction form
    13,402.19/18,495.11 = 7,433.96/x
  3. Step 3: Cross multiply
    13,402.19x = 18,495.11 × 7,433.96
  4. Step 4: Simplify right side
    13,402.19x = 137,491,778.29
  5. Step 5: Solve for x
    x = 137,491,778.29/13,402.19
  6. Step 6: Final answer
    x = 10,258.91

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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.