Home / 14,642.10-21,940.15-11,318.49

Finding the Fourth Proportional to 14,642.10, 21,940.15 and 11,318.49

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Solution

The fourth proportional to 14,642.10, 21,940.15 and 11,318.49 is: 16,959.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,642.10 : 21,940.15 = 11,318.49 : x
  2. Step 2: Convert to fraction form
    14,642.10/21,940.15 = 11,318.49/x
  3. Step 3: Cross multiply
    14,642.10x = 21,940.15 × 11,318.49
  4. Step 4: Simplify right side
    14,642.10x = 248,329,311.78
  5. Step 5: Solve for x
    x = 248,329,311.78/14,642.10
  6. Step 6: Final answer
    x = 16,959.96

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1.5x scale

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.