Home / 11,172.30-15,417.66-6,136.50

Finding the Fourth Proportional to 11,172.30, 15,417.66 and 6,136.50

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Solution

The fourth proportional to 11,172.30, 15,417.66 and 6,136.50 is: 8,468.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,172.30 : 15,417.66 = 6,136.50 : x
  2. Step 2: Convert to fraction form
    11,172.30/15,417.66 = 6,136.50/x
  3. Step 3: Cross multiply
    11,172.30x = 15,417.66 × 6,136.50
  4. Step 4: Simplify right side
    11,172.30x = 94,610,470.59
  5. Step 5: Solve for x
    x = 94,610,470.59/11,172.30
  6. Step 6: Final answer
    x = 8,468.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.