Home / 14,940.84-20,618.42-8,226.30

Finding the Fourth Proportional to 14,940.84, 20,618.42 and 8,226.30

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Solution

The fourth proportional to 14,940.84, 20,618.42 and 8,226.30 is: 11,352.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,940.84 : 20,618.42 = 8,226.30 : x
  2. Step 2: Convert to fraction form
    14,940.84/20,618.42 = 8,226.30/x
  3. Step 3: Cross multiply
    14,940.84x = 20,618.42 × 8,226.30
  4. Step 4: Simplify right side
    14,940.84x = 169,613,267.31
  5. Step 5: Solve for x
    x = 169,613,267.31/14,940.84
  6. Step 6: Final answer
    x = 11,352.32

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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.