Home / 13,545.89-20,312.45-8,794.36

Finding the Fourth Proportional to 13,545.89, 20,312.45 and 8,794.36

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Solution

The fourth proportional to 13,545.89, 20,312.45 and 8,794.36 is: 13,187.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545.89 : 20,312.45 = 8,794.36 : x
  2. Step 2: Convert to fraction form
    13,545.89/20,312.45 = 8,794.36/x
  3. Step 3: Cross multiply
    13,545.89x = 20,312.45 × 8,794.36
  4. Step 4: Simplify right side
    13,545.89x = 178,634,997.78
  5. Step 5: Solve for x
    x = 178,634,997.78/13,545.89
  6. Step 6: Final answer
    x = 13,187.39

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.