Home / 13,363.80-20,136-11,074.74

Finding the Fourth Proportional to 13,363.80, 20,136 and 11,074.74

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Solution

The fourth proportional to 13,363.80, 20,136 and 11,074.74 is: 16,686.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,363.80 : 20,136 = 11,074.74 : x
  2. Step 2: Convert to fraction form
    13,363.80/20,136 = 11,074.74/x
  3. Step 3: Cross multiply
    13,363.80x = 20,136 × 11,074.74
  4. Step 4: Simplify right side
    13,363.80x = 223,000,964.64
  5. Step 5: Solve for x
    x = 223,000,964.64/13,363.80
  6. Step 6: Final answer
    x = 16,686.94

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.