Home / 11,006.40-16,478.40-8,545.60

Finding the Fourth Proportional to 11,006.40, 16,478.40 and 8,545.60

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Solution

The fourth proportional to 11,006.40, 16,478.40 and 8,545.60 is: 12,794.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,006.40 : 16,478.40 = 8,545.60 : x
  2. Step 2: Convert to fraction form
    11,006.40/16,478.40 = 8,545.60/x
  3. Step 3: Cross multiply
    11,006.40x = 16,478.40 × 8,545.60
  4. Step 4: Simplify right side
    11,006.40x = 140,817,815.04
  5. Step 5: Solve for x
    x = 140,817,815.04/11,006.40
  6. Step 6: Final answer
    x = 12,794.18

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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.