Home / 13,491.29-20,223.09-5,169.17

Finding the Fourth Proportional to 13,491.29, 20,223.09 and 5,169.17

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Solution

The fourth proportional to 13,491.29, 20,223.09 and 5,169.17 is: 7,748.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491.29 : 20,223.09 = 5,169.17 : x
  2. Step 2: Convert to fraction form
    13,491.29/20,223.09 = 5,169.17/x
  3. Step 3: Cross multiply
    13,491.29x = 20,223.09 × 5,169.17
  4. Step 4: Simplify right side
    13,491.29x = 104,536,489.02
  5. Step 5: Solve for x
    x = 104,536,489.02/13,491.29
  6. Step 6: Final answer
    x = 7,748.45

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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.