Home / 11,212.58-15,457.20-7,844.96

Finding the Fourth Proportional to 11,212.58, 15,457.20 and 7,844.96

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Solution

The fourth proportional to 11,212.58, 15,457.20 and 7,844.96 is: 10,814.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,212.58 : 15,457.20 = 7,844.96 : x
  2. Step 2: Convert to fraction form
    11,212.58/15,457.20 = 7,844.96/x
  3. Step 3: Cross multiply
    11,212.58x = 15,457.20 × 7,844.96
  4. Step 4: Simplify right side
    11,212.58x = 121,261,115.71
  5. Step 5: Solve for x
    x = 121,261,115.71/11,212.58
  6. Step 6: Final answer
    x = 10,814.74

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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.