Home / 13,545.67-20,314.34-4,778.53

Finding the Fourth Proportional to 13,545.67, 20,314.34 and 4,778.53

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Solution

The fourth proportional to 13,545.67, 20,314.34 and 4,778.53 is: 7,166.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545.67 : 20,314.34 = 4,778.53 : x
  2. Step 2: Convert to fraction form
    13,545.67/20,314.34 = 4,778.53/x
  3. Step 3: Cross multiply
    13,545.67x = 20,314.34 × 4,778.53
  4. Step 4: Simplify right side
    13,545.67x = 97,072,683.12
  5. Step 5: Solve for x
    x = 97,072,683.12/13,545.67
  6. Step 6: Final answer
    x = 7,166.33

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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.