Home / 12,545.40-18,821.30-8,854.82

Finding the Fourth Proportional to 12,545.40, 18,821.30 and 8,854.82

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Solution

The fourth proportional to 12,545.40, 18,821.30 and 8,854.82 is: 13,284.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.40 : 18,821.30 = 8,854.82 : x
  2. Step 2: Convert to fraction form
    12,545.40/18,821.30 = 8,854.82/x
  3. Step 3: Cross multiply
    12,545.40x = 18,821.30 × 8,854.82
  4. Step 4: Simplify right side
    12,545.40x = 166,659,223.67
  5. Step 5: Solve for x
    x = 166,659,223.67/12,545.40
  6. Step 6: Final answer
    x = 13,284.49

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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.