Home / 14,188.89-21,282.51-5,424.69

Finding the Fourth Proportional to 14,188.89, 21,282.51 and 5,424.69

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Solution

The fourth proportional to 14,188.89, 21,282.51 and 5,424.69 is: 8,136.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,188.89 : 21,282.51 = 5,424.69 : x
  2. Step 2: Convert to fraction form
    14,188.89/21,282.51 = 5,424.69/x
  3. Step 3: Cross multiply
    14,188.89x = 21,282.51 × 5,424.69
  4. Step 4: Simplify right side
    14,188.89x = 115,451,019.17
  5. Step 5: Solve for x
    x = 115,451,019.17/14,188.89
  6. Step 6: Final answer
    x = 8,136.72

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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.