Home / 12,031.35-18,049.76-5,459.41

Finding the Fourth Proportional to 12,031.35, 18,049.76 and 5,459.41

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Solution

The fourth proportional to 12,031.35, 18,049.76 and 5,459.41 is: 8,190.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,031.35 : 18,049.76 = 5,459.41 : x
  2. Step 2: Convert to fraction form
    12,031.35/18,049.76 = 5,459.41/x
  3. Step 3: Cross multiply
    12,031.35x = 18,049.76 × 5,459.41
  4. Step 4: Simplify right side
    12,031.35x = 98,541,040.24
  5. Step 5: Solve for x
    x = 98,541,040.24/12,031.35
  6. Step 6: Final answer
    x = 8,190.36

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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.