Home / 12,920.96-19,379.54-6,165.02

Finding the Fourth Proportional to 12,920.96, 19,379.54 and 6,165.02

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Solution

The fourth proportional to 12,920.96, 19,379.54 and 6,165.02 is: 9,246.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,920.96 : 19,379.54 = 6,165.02 : x
  2. Step 2: Convert to fraction form
    12,920.96/19,379.54 = 6,165.02/x
  3. Step 3: Cross multiply
    12,920.96x = 19,379.54 × 6,165.02
  4. Step 4: Simplify right side
    12,920.96x = 119,475,251.69
  5. Step 5: Solve for x
    x = 119,475,251.69/12,920.96
  6. Step 6: Final answer
    x = 9,246.62

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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.