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Finding the Fourth Proportional to 10,679.04, 15,936.14 and 9,383.18

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Solution

The fourth proportional to 10,679.04, 15,936.14 and 9,383.18 is: 14,002.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,679.04 : 15,936.14 = 9,383.18 : x
  2. Step 2: Convert to fraction form
    10,679.04/15,936.14 = 9,383.18/x
  3. Step 3: Cross multiply
    10,679.04x = 15,936.14 × 9,383.18
  4. Step 4: Simplify right side
    10,679.04x = 149,531,613.90
  5. Step 5: Solve for x
    x = 149,531,613.90/10,679.04
  6. Step 6: Final answer
    x = 14,002.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.