Home / 19,545.15-29,310.42-7,854.42

Finding the Fourth Proportional to 19,545.15, 29,310.42 and 7,854.42

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Solution

The fourth proportional to 19,545.15, 29,310.42 and 7,854.42 is: 11,778.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,545.15 : 29,310.42 = 7,854.42 : x
  2. Step 2: Convert to fraction form
    19,545.15/29,310.42 = 7,854.42/x
  3. Step 3: Cross multiply
    19,545.15x = 29,310.42 × 7,854.42
  4. Step 4: Simplify right side
    19,545.15x = 230,216,349.06
  5. Step 5: Solve for x
    x = 230,216,349.06/19,545.15
  6. Step 6: Final answer
    x = 11,778.69

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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.