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Finding the Fourth Proportional to 10,642.02, 15,930.18 and 6,936.28

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Solution

The fourth proportional to 10,642.02, 15,930.18 and 6,936.28 is: 10,383.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,642.02 : 15,930.18 = 6,936.28 : x
  2. Step 2: Convert to fraction form
    10,642.02/15,930.18 = 6,936.28/x
  3. Step 3: Cross multiply
    10,642.02x = 15,930.18 × 6,936.28
  4. Step 4: Simplify right side
    10,642.02x = 110,496,188.93
  5. Step 5: Solve for x
    x = 110,496,188.93/10,642.02
  6. Step 6: Final answer
    x = 10,383.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.