Home / 11,940.21-16,479.01-7,224.53

Finding the Fourth Proportional to 11,940.21, 16,479.01 and 7,224.53

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Solution

The fourth proportional to 11,940.21, 16,479.01 and 7,224.53 is: 9,970.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,940.21 : 16,479.01 = 7,224.53 : x
  2. Step 2: Convert to fraction form
    11,940.21/16,479.01 = 7,224.53/x
  3. Step 3: Cross multiply
    11,940.21x = 16,479.01 × 7,224.53
  4. Step 4: Simplify right side
    11,940.21x = 119,053,065.99
  5. Step 5: Solve for x
    x = 119,053,065.99/11,940.21
  6. Step 6: Final answer
    x = 9,970.77

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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.