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Finding the Fourth Proportional to 10,441.40, 15,662.03 and 8,374.39

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Solution

The fourth proportional to 10,441.40, 15,662.03 and 8,374.39 is: 12,561.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,441.40 : 15,662.03 = 8,374.39 : x
  2. Step 2: Convert to fraction form
    10,441.40/15,662.03 = 8,374.39/x
  3. Step 3: Cross multiply
    10,441.40x = 15,662.03 × 8,374.39
  4. Step 4: Simplify right side
    10,441.40x = 131,159,866.38
  5. Step 5: Solve for x
    x = 131,159,866.38/10,441.40
  6. Step 6: Final answer
    x = 12,561.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.