Home / 11,200.20-15,462.66-7,802.16

Finding the Fourth Proportional to 11,200.20, 15,462.66 and 7,802.16

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Solution

The fourth proportional to 11,200.20, 15,462.66 and 7,802.16 is: 10,771.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,200.20 : 15,462.66 = 7,802.16 : x
  2. Step 2: Convert to fraction form
    11,200.20/15,462.66 = 7,802.16/x
  3. Step 3: Cross multiply
    11,200.20x = 15,462.66 × 7,802.16
  4. Step 4: Simplify right side
    11,200.20x = 120,642,147.35
  5. Step 5: Solve for x
    x = 120,642,147.35/11,200.20
  6. Step 6: Final answer
    x = 10,771.43

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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.