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Finding the Fourth Proportional to 14,425.62, 19,908.99 and 8,137.50

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Solution

The fourth proportional to 14,425.62, 19,908.99 and 8,137.50 is: 11,230.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,425.62 : 19,908.99 = 8,137.50 : x
  2. Step 2: Convert to fraction form
    14,425.62/19,908.99 = 8,137.50/x
  3. Step 3: Cross multiply
    14,425.62x = 19,908.99 × 8,137.50
  4. Step 4: Simplify right side
    14,425.62x = 162,009,406.13
  5. Step 5: Solve for x
    x = 162,009,406.13/14,425.62
  6. Step 6: Final answer
    x = 11,230.67

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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.