Home / 11,434.44-15,780.14-6,398.36

Finding the Fourth Proportional to 11,434.44, 15,780.14 and 6,398.36

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Solution

The fourth proportional to 11,434.44, 15,780.14 and 6,398.36 is: 8,830.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,434.44 : 15,780.14 = 6,398.36 : x
  2. Step 2: Convert to fraction form
    11,434.44/15,780.14 = 6,398.36/x
  3. Step 3: Cross multiply
    11,434.44x = 15,780.14 × 6,398.36
  4. Step 4: Simplify right side
    11,434.44x = 100,967,016.57
  5. Step 5: Solve for x
    x = 100,967,016.57/11,434.44
  6. Step 6: Final answer
    x = 8,830.08

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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.