Home / 17,491.28-26,215.04-13,778.84

Finding the Fourth Proportional to 17,491.28, 26,215.04 and 13,778.84

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Solution

The fourth proportional to 17,491.28, 26,215.04 and 13,778.84 is: 20,651.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,491.28 : 26,215.04 = 13,778.84 : x
  2. Step 2: Convert to fraction form
    17,491.28/26,215.04 = 13,778.84/x
  3. Step 3: Cross multiply
    17,491.28x = 26,215.04 × 13,778.84
  4. Step 4: Simplify right side
    17,491.28x = 361,212,941.74
  5. Step 5: Solve for x
    x = 361,212,941.74/17,491.28
  6. Step 6: Final answer
    x = 20,651.04

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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.