Home / 11,427.58-17,143.53-4,031.20

Finding the Fourth Proportional to 11,427.58, 17,143.53 and 4,031.20

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Solution

The fourth proportional to 11,427.58, 17,143.53 and 4,031.20 is: 6,047.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,427.58 : 17,143.53 = 4,031.20 : x
  2. Step 2: Convert to fraction form
    11,427.58/17,143.53 = 4,031.20/x
  3. Step 3: Cross multiply
    11,427.58x = 17,143.53 × 4,031.20
  4. Step 4: Simplify right side
    11,427.58x = 69,108,998.14
  5. Step 5: Solve for x
    x = 69,108,998.14/11,427.58
  6. Step 6: Final answer
    x = 6,047.56

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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.