Home / 11,136.86-16,708.13-8,210.15

Finding the Fourth Proportional to 11,136.86, 16,708.13 and 8,210.15

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Solution

The fourth proportional to 11,136.86, 16,708.13 and 8,210.15 is: 12,317.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,136.86 : 16,708.13 = 8,210.15 : x
  2. Step 2: Convert to fraction form
    11,136.86/16,708.13 = 8,210.15/x
  3. Step 3: Cross multiply
    11,136.86x = 16,708.13 × 8,210.15
  4. Step 4: Simplify right side
    11,136.86x = 137,176,128.93
  5. Step 5: Solve for x
    x = 137,176,128.93/11,136.86
  6. Step 6: Final answer
    x = 12,317.31

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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.