Home / 19,318.29-28,985.94-8,226.15

Finding the Fourth Proportional to 19,318.29, 28,985.94 and 8,226.15

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Solution

The fourth proportional to 19,318.29, 28,985.94 and 8,226.15 is: 12,342.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,318.29 : 28,985.94 = 8,226.15 : x
  2. Step 2: Convert to fraction form
    19,318.29/28,985.94 = 8,226.15/x
  3. Step 3: Cross multiply
    19,318.29x = 28,985.94 × 8,226.15
  4. Step 4: Simplify right side
    19,318.29x = 238,442,690.33
  5. Step 5: Solve for x
    x = 238,442,690.33/19,318.29
  6. Step 6: Final answer
    x = 12,342.85

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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.