Home / 17,142.14-23,655.84-9,690.14

Finding the Fourth Proportional to 17,142.14, 23,655.84 and 9,690.14

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Solution

The fourth proportional to 17,142.14, 23,655.84 and 9,690.14 is: 13,372.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,142.14 : 23,655.84 = 9,690.14 : x
  2. Step 2: Convert to fraction form
    17,142.14/23,655.84 = 9,690.14/x
  3. Step 3: Cross multiply
    17,142.14x = 23,655.84 × 9,690.14
  4. Step 4: Simplify right side
    17,142.14x = 229,228,401.42
  5. Step 5: Solve for x
    x = 229,228,401.42/17,142.14
  6. Step 6: Final answer
    x = 13,372.22

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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.