Home / 11,342.30-15,648.21-6,864.41

Finding the Fourth Proportional to 11,342.30, 15,648.21 and 6,864.41

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Solution

The fourth proportional to 11,342.30, 15,648.21 and 6,864.41 is: 9,470.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,342.30 : 15,648.21 = 6,864.41 : x
  2. Step 2: Convert to fraction form
    11,342.30/15,648.21 = 6,864.41/x
  3. Step 3: Cross multiply
    11,342.30x = 15,648.21 × 6,864.41
  4. Step 4: Simplify right side
    11,342.30x = 107,415,768.33
  5. Step 5: Solve for x
    x = 107,415,768.33/11,342.30
  6. Step 6: Final answer
    x = 9,470.37

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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.