Home / 11,926.83-16,457.63-6,620.34

Finding the Fourth Proportional to 11,926.83, 16,457.63 and 6,620.34

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Solution

The fourth proportional to 11,926.83, 16,457.63 and 6,620.34 is: 9,135.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,926.83 : 16,457.63 = 6,620.34 : x
  2. Step 2: Convert to fraction form
    11,926.83/16,457.63 = 6,620.34/x
  3. Step 3: Cross multiply
    11,926.83x = 16,457.63 × 6,620.34
  4. Step 4: Simplify right side
    11,926.83x = 108,955,073.09
  5. Step 5: Solve for x
    x = 108,955,073.09/11,926.83
  6. Step 6: Final answer
    x = 9,135.29

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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.