Home / 13,744.99-18,968.55-8,079.66

Finding the Fourth Proportional to 13,744.99, 18,968.55 and 8,079.66

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Solution

The fourth proportional to 13,744.99, 18,968.55 and 8,079.66 is: 11,150.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,744.99 : 18,968.55 = 8,079.66 : x
  2. Step 2: Convert to fraction form
    13,744.99/18,968.55 = 8,079.66/x
  3. Step 3: Cross multiply
    13,744.99x = 18,968.55 × 8,079.66
  4. Step 4: Simplify right side
    13,744.99x = 153,259,434.69
  5. Step 5: Solve for x
    x = 153,259,434.69/13,744.99
  6. Step 6: Final answer
    x = 11,150.20

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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.