Home / 10,126.08-13,942.80-8,630.64

Finding the Fourth Proportional to 10,126.08, 13,942.80 and 8,630.64

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Solution

The fourth proportional to 10,126.08, 13,942.80 and 8,630.64 is: 11,883.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,126.08 : 13,942.80 = 8,630.64 : x
  2. Step 2: Convert to fraction form
    10,126.08/13,942.80 = 8,630.64/x
  3. Step 3: Cross multiply
    10,126.08x = 13,942.80 × 8,630.64
  4. Step 4: Simplify right side
    10,126.08x = 120,335,287.39
  5. Step 5: Solve for x
    x = 120,335,287.39/10,126.08
  6. Step 6: Final answer
    x = 11,883.70

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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.