Home / 10,203.20-14,076.96-6,479.36

Finding the Fourth Proportional to 10,203.20, 14,076.96 and 6,479.36

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Solution

The fourth proportional to 10,203.20, 14,076.96 and 6,479.36 is: 8,939.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,203.20 : 14,076.96 = 6,479.36 : x
  2. Step 2: Convert to fraction form
    10,203.20/14,076.96 = 6,479.36/x
  3. Step 3: Cross multiply
    10,203.20x = 14,076.96 × 6,479.36
  4. Step 4: Simplify right side
    10,203.20x = 91,209,691.55
  5. Step 5: Solve for x
    x = 91,209,691.55/10,203.20
  6. Step 6: Final answer
    x = 8,939.32

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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.