Home / 16,242.62-22,420.26-11,518.70

Finding the Fourth Proportional to 16,242.62, 22,420.26 and 11,518.70

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Solution

The fourth proportional to 16,242.62, 22,420.26 and 11,518.70 is: 15,899.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,242.62 : 22,420.26 = 11,518.70 : x
  2. Step 2: Convert to fraction form
    16,242.62/22,420.26 = 11,518.70/x
  3. Step 3: Cross multiply
    16,242.62x = 22,420.26 × 11,518.70
  4. Step 4: Simplify right side
    16,242.62x = 258,252,136.76
  5. Step 5: Solve for x
    x = 258,252,136.76/16,242.62
  6. Step 6: Final answer
    x = 15,899.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.