Home / 10,261.28-14,162.64-8,018.72

Finding the Fourth Proportional to 10,261.28, 14,162.64 and 8,018.72

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Solution

The fourth proportional to 10,261.28, 14,162.64 and 8,018.72 is: 11,067.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,261.28 : 14,162.64 = 8,018.72 : x
  2. Step 2: Convert to fraction form
    10,261.28/14,162.64 = 8,018.72/x
  3. Step 3: Cross multiply
    10,261.28x = 14,162.64 × 8,018.72
  4. Step 4: Simplify right side
    10,261.28x = 113,566,244.62
  5. Step 5: Solve for x
    x = 113,566,244.62/10,261.28
  6. Step 6: Final answer
    x = 11,067.45

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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.