Home / 15,127.58-20,885.82-9,752.42

Finding the Fourth Proportional to 15,127.58, 20,885.82 and 9,752.42

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Solution

The fourth proportional to 15,127.58, 20,885.82 and 9,752.42 is: 13,464.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,127.58 : 20,885.82 = 9,752.42 : x
  2. Step 2: Convert to fraction form
    15,127.58/20,885.82 = 9,752.42/x
  3. Step 3: Cross multiply
    15,127.58x = 20,885.82 × 9,752.42
  4. Step 4: Simplify right side
    15,127.58x = 203,687,288.68
  5. Step 5: Solve for x
    x = 203,687,288.68/15,127.58
  6. Step 6: Final answer
    x = 13,464.63

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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.