Home / 11,693.32-16,136.58-6,387.64

Finding the Fourth Proportional to 11,693.32, 16,136.58 and 6,387.64

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Solution

The fourth proportional to 11,693.32, 16,136.58 and 6,387.64 is: 8,814.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,693.32 : 16,136.58 = 6,387.64 : x
  2. Step 2: Convert to fraction form
    11,693.32/16,136.58 = 6,387.64/x
  3. Step 3: Cross multiply
    11,693.32x = 16,136.58 × 6,387.64
  4. Step 4: Simplify right side
    11,693.32x = 103,074,663.87
  5. Step 5: Solve for x
    x = 103,074,663.87/11,693.32
  6. Step 6: Final answer
    x = 8,814.83

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1.5x scale

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.