Home / 11,342.52-15,649.07-6,864.84

Finding the Fourth Proportional to 11,342.52, 15,649.07 and 6,864.84

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Solution

The fourth proportional to 11,342.52, 15,649.07 and 6,864.84 is: 9,471.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,342.52 : 15,649.07 = 6,864.84 : x
  2. Step 2: Convert to fraction form
    11,342.52/15,649.07 = 6,864.84/x
  3. Step 3: Cross multiply
    11,342.52x = 15,649.07 × 6,864.84
  4. Step 4: Simplify right side
    11,342.52x = 107,428,327.37
  5. Step 5: Solve for x
    x = 107,428,327.37/11,342.52
  6. Step 6: Final answer
    x = 9,471.29

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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.