Home / 10,142.12-15,218.14-5,697

Finding the Fourth Proportional to 10,142.12, 15,218.14 and 5,697

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Solution

The fourth proportional to 10,142.12, 15,218.14 and 5,697 is: 8,548.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,142.12 : 15,218.14 = 5,697 : x
  2. Step 2: Convert to fraction form
    10,142.12/15,218.14 = 5,697/x
  3. Step 3: Cross multiply
    10,142.12x = 15,218.14 × 5,697
  4. Step 4: Simplify right side
    10,142.12x = 86,697,743.58
  5. Step 5: Solve for x
    x = 86,697,743.58/10,142.12
  6. Step 6: Final answer
    x = 8,548.29

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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.