Home / 11,120.48-15,346.62-6,340.34

Finding the Fourth Proportional to 11,120.48, 15,346.62 and 6,340.34

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Solution

The fourth proportional to 11,120.48, 15,346.62 and 6,340.34 is: 8,749.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,120.48 : 15,346.62 = 6,340.34 : x
  2. Step 2: Convert to fraction form
    11,120.48/15,346.62 = 6,340.34/x
  3. Step 3: Cross multiply
    11,120.48x = 15,346.62 × 6,340.34
  4. Step 4: Simplify right side
    11,120.48x = 97,302,788.65
  5. Step 5: Solve for x
    x = 97,302,788.65/11,120.48
  6. Step 6: Final answer
    x = 8,749.87

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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.