Home / 11,136.50-15,368.40-6,168.50

Finding the Fourth Proportional to 11,136.50, 15,368.40 and 6,168.50

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Solution

The fourth proportional to 11,136.50, 15,368.40 and 6,168.50 is: 8,512.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,136.50 : 15,368.40 = 6,168.50 : x
  2. Step 2: Convert to fraction form
    11,136.50/15,368.40 = 6,168.50/x
  3. Step 3: Cross multiply
    11,136.50x = 15,368.40 × 6,168.50
  4. Step 4: Simplify right side
    11,136.50x = 94,799,975.40
  5. Step 5: Solve for x
    x = 94,799,975.40/11,136.50
  6. Step 6: Final answer
    x = 8,512.55

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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.