Home / 11,926.18-16,457.88-6,620.68

Finding the Fourth Proportional to 11,926.18, 16,457.88 and 6,620.68

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Solution

The fourth proportional to 11,926.18, 16,457.88 and 6,620.68 is: 9,136.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,926.18 : 16,457.88 = 6,620.68 : x
  2. Step 2: Convert to fraction form
    11,926.18/16,457.88 = 6,620.68/x
  3. Step 3: Cross multiply
    11,926.18x = 16,457.88 × 6,620.68
  4. Step 4: Simplify right side
    11,926.18x = 108,962,356.96
  5. Step 5: Solve for x
    x = 108,962,356.96/11,926.18
  6. Step 6: Final answer
    x = 9,136.40

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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.