Home / 11,120.42-15,346.20-6,340.22

Finding the Fourth Proportional to 11,120.42, 15,346.20 and 6,340.22

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Solution

The fourth proportional to 11,120.42, 15,346.20 and 6,340.22 is: 8,749.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,120.42 : 15,346.20 = 6,340.22 : x
  2. Step 2: Convert to fraction form
    11,120.42/15,346.20 = 6,340.22/x
  3. Step 3: Cross multiply
    11,120.42x = 15,346.20 × 6,340.22
  4. Step 4: Simplify right side
    11,120.42x = 97,298,284.16
  5. Step 5: Solve for x
    x = 97,298,284.16/11,120.42
  6. Step 6: Final answer
    x = 8,749.52

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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.