Home / 14,015.11-19,329.90-8,979.79

Finding the Fourth Proportional to 14,015.11, 19,329.90 and 8,979.79

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Solution

The fourth proportional to 14,015.11, 19,329.90 and 8,979.79 is: 12,385.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,015.11 : 19,329.90 = 8,979.79 : x
  2. Step 2: Convert to fraction form
    14,015.11/19,329.90 = 8,979.79/x
  3. Step 3: Cross multiply
    14,015.11x = 19,329.90 × 8,979.79
  4. Step 4: Simplify right side
    14,015.11x = 173,578,442.72
  5. Step 5: Solve for x
    x = 173,578,442.72/14,015.11
  6. Step 6: Final answer
    x = 12,385.09

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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.