Home / 11,136.15-16,683.98-8,811.45

Finding the Fourth Proportional to 11,136.15, 16,683.98 and 8,811.45

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Solution

The fourth proportional to 11,136.15, 16,683.98 and 8,811.45 is: 13,201.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,136.15 : 16,683.98 = 8,811.45 : x
  2. Step 2: Convert to fraction form
    11,136.15/16,683.98 = 8,811.45/x
  3. Step 3: Cross multiply
    11,136.15x = 16,683.98 × 8,811.45
  4. Step 4: Simplify right side
    11,136.15x = 147,010,011.51
  5. Step 5: Solve for x
    x = 147,010,011.51/11,136.15
  6. Step 6: Final answer
    x = 13,201.15

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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.