Home / 14,913.99-20,581.43-8,199.43

Finding the Fourth Proportional to 14,913.99, 20,581.43 and 8,199.43

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Solution

The fourth proportional to 14,913.99, 20,581.43 and 8,199.43 is: 11,315.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,913.99 : 20,581.43 = 8,199.43 : x
  2. Step 2: Convert to fraction form
    14,913.99/20,581.43 = 8,199.43/x
  3. Step 3: Cross multiply
    14,913.99x = 20,581.43 × 8,199.43
  4. Step 4: Simplify right side
    14,913.99x = 168,755,902.13
  5. Step 5: Solve for x
    x = 168,755,902.13/14,913.99
  6. Step 6: Final answer
    x = 11,315.28

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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.