Home / 14,089.78-21,136.07-5,207.44

Finding the Fourth Proportional to 14,089.78, 21,136.07 and 5,207.44

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Solution

The fourth proportional to 14,089.78, 21,136.07 and 5,207.44 is: 7,811.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,089.78 : 21,136.07 = 5,207.44 : x
  2. Step 2: Convert to fraction form
    14,089.78/21,136.07 = 5,207.44/x
  3. Step 3: Cross multiply
    14,089.78x = 21,136.07 × 5,207.44
  4. Step 4: Simplify right side
    14,089.78x = 110,064,816.17
  5. Step 5: Solve for x
    x = 110,064,816.17/14,089.78
  6. Step 6: Final answer
    x = 7,811.68

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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.