Home / 13,433.90-20,136.45-5,110.70

Finding the Fourth Proportional to 13,433.90, 20,136.45 and 5,110.70

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Solution

The fourth proportional to 13,433.90, 20,136.45 and 5,110.70 is: 7,660.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,433.90 : 20,136.45 = 5,110.70 : x
  2. Step 2: Convert to fraction form
    13,433.90/20,136.45 = 5,110.70/x
  3. Step 3: Cross multiply
    13,433.90x = 20,136.45 × 5,110.70
  4. Step 4: Simplify right side
    13,433.90x = 102,911,355.02
  5. Step 5: Solve for x
    x = 102,911,355.02/13,433.90
  6. Step 6: Final answer
    x = 7,660.57

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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.