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Finding the Fourth Proportional to 13,400.46, 18,492.30 and 7,432.11

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Solution

The fourth proportional to 13,400.46, 18,492.30 and 7,432.11 is: 10,256.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,400.46 : 18,492.30 = 7,432.11 : x
  2. Step 2: Convert to fraction form
    13,400.46/18,492.30 = 7,432.11/x
  3. Step 3: Cross multiply
    13,400.46x = 18,492.30 × 7,432.11
  4. Step 4: Simplify right side
    13,400.46x = 137,436,807.75
  5. Step 5: Solve for x
    x = 137,436,807.75/13,400.46
  6. Step 6: Final answer
    x = 10,256.13

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