Home / 10,909.24-16,350.64-4,977.99

Finding the Fourth Proportional to 10,909.24, 16,350.64 and 4,977.99

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Solution

The fourth proportional to 10,909.24, 16,350.64 and 4,977.99 is: 7,460.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,909.24 : 16,350.64 = 4,977.99 : x
  2. Step 2: Convert to fraction form
    10,909.24/16,350.64 = 4,977.99/x
  3. Step 3: Cross multiply
    10,909.24x = 16,350.64 × 4,977.99
  4. Step 4: Simplify right side
    10,909.24x = 81,393,309.97
  5. Step 5: Solve for x
    x = 81,393,309.97/10,909.24
  6. Step 6: Final answer
    x = 7,460.95

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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.