Home / 6,686.14-9,221.28-5,011.48

Finding the Fourth Proportional to 6,686.14, 9,221.28 and 5,011.48

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Solution

The fourth proportional to 6,686.14, 9,221.28 and 5,011.48 is: 6,911.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,686.14 : 9,221.28 = 5,011.48 : x
  2. Step 2: Convert to fraction form
    6,686.14/9,221.28 = 5,011.48/x
  3. Step 3: Cross multiply
    6,686.14x = 9,221.28 × 5,011.48
  4. Step 4: Simplify right side
    6,686.14x = 46,212,260.29
  5. Step 5: Solve for x
    x = 46,212,260.29/6,686.14
  6. Step 6: Final answer
    x = 6,911.65

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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.