Home / 14,216.27-19,618.49-7,929.05

Finding the Fourth Proportional to 14,216.27, 19,618.49 and 7,929.05

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Solution

The fourth proportional to 14,216.27, 19,618.49 and 7,929.05 is: 10,942.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,216.27 : 19,618.49 = 7,929.05 : x
  2. Step 2: Convert to fraction form
    14,216.27/19,618.49 = 7,929.05/x
  3. Step 3: Cross multiply
    14,216.27x = 19,618.49 × 7,929.05
  4. Step 4: Simplify right side
    14,216.27x = 155,555,948.49
  5. Step 5: Solve for x
    x = 155,555,948.49/14,216.27
  6. Step 6: Final answer
    x = 10,942.11

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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.