Home / 11,456.18-15,808.78-6,739.55

Finding the Fourth Proportional to 11,456.18, 15,808.78 and 6,739.55

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Solution

The fourth proportional to 11,456.18, 15,808.78 and 6,739.55 is: 9,300.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,456.18 : 15,808.78 = 6,739.55 : x
  2. Step 2: Convert to fraction form
    11,456.18/15,808.78 = 6,739.55/x
  3. Step 3: Cross multiply
    11,456.18x = 15,808.78 × 6,739.55
  4. Step 4: Simplify right side
    11,456.18x = 106,544,063.25
  5. Step 5: Solve for x
    x = 106,544,063.25/11,456.18
  6. Step 6: Final answer
    x = 9,300.14

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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.