Home / 19,136.81-28,710.09-8,746.13

Finding the Fourth Proportional to 19,136.81, 28,710.09 and 8,746.13

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Solution

The fourth proportional to 19,136.81, 28,710.09 and 8,746.13 is: 13,121.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,136.81 : 28,710.09 = 8,746.13 : x
  2. Step 2: Convert to fraction form
    19,136.81/28,710.09 = 8,746.13/x
  3. Step 3: Cross multiply
    19,136.81x = 28,710.09 × 8,746.13
  4. Step 4: Simplify right side
    19,136.81x = 251,102,035.90
  5. Step 5: Solve for x
    x = 251,102,035.90/19,136.81
  6. Step 6: Final answer
    x = 13,121.42

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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.