Home / 14,188.74-21,283.14-5,424.54

Finding the Fourth Proportional to 14,188.74, 21,283.14 and 5,424.54

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Solution

The fourth proportional to 14,188.74, 21,283.14 and 5,424.54 is: 8,136.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,188.74 : 21,283.14 = 5,424.54 : x
  2. Step 2: Convert to fraction form
    14,188.74/21,283.14 = 5,424.54/x
  3. Step 3: Cross multiply
    14,188.74x = 21,283.14 × 5,424.54
  4. Step 4: Simplify right side
    14,188.74x = 115,451,244.26
  5. Step 5: Solve for x
    x = 115,451,244.26/14,188.74
  6. Step 6: Final answer
    x = 8,136.82

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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.