Home / 14,991.82-20,688.61-8,277.87

Finding the Fourth Proportional to 14,991.82, 20,688.61 and 8,277.87

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Solution

The fourth proportional to 14,991.82, 20,688.61 and 8,277.87 is: 11,423.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,991.82 : 20,688.61 = 8,277.87 : x
  2. Step 2: Convert to fraction form
    14,991.82/20,688.61 = 8,277.87/x
  3. Step 3: Cross multiply
    14,991.82x = 20,688.61 × 8,277.87
  4. Step 4: Simplify right side
    14,991.82x = 171,257,624.06
  5. Step 5: Solve for x
    x = 171,257,624.06/14,991.82
  6. Step 6: Final answer
    x = 11,423.40

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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.