Home / 11,451.22-15,802.57-6,415.65

Finding the Fourth Proportional to 11,451.22, 15,802.57 and 6,415.65

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Solution

The fourth proportional to 11,451.22, 15,802.57 and 6,415.65 is: 8,853.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,451.22 : 15,802.57 = 6,415.65 : x
  2. Step 2: Convert to fraction form
    11,451.22/15,802.57 = 6,415.65/x
  3. Step 3: Cross multiply
    11,451.22x = 15,802.57 × 6,415.65
  4. Step 4: Simplify right side
    11,451.22x = 101,383,742.18
  5. Step 5: Solve for x
    x = 101,383,742.18/11,451.22
  6. Step 6: Final answer
    x = 8,853.53

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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.