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Finding the Fourth Proportional to 14,325, 19,770.87 and 8,356.67

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Solution

The fourth proportional to 14,325, 19,770.87 and 8,356.67 is: 11,533.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,325 : 19,770.87 = 8,356.67 : x
  2. Step 2: Convert to fraction form
    14,325/19,770.87 = 8,356.67/x
  3. Step 3: Cross multiply
    14,325x = 19,770.87 × 8,356.67
  4. Step 4: Simplify right side
    14,325x = 165,218,537.35
  5. Step 5: Solve for x
    x = 165,218,537.35/14,325
  6. Step 6: Final answer
    x = 11,533.58

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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.