Home / 8,031.36-12,070.08-3,930.24

Finding the Fourth Proportional to 8,031.36, 12,070.08 and 3,930.24

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Solution

The fourth proportional to 8,031.36, 12,070.08 and 3,930.24 is: 5,906.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,031.36 : 12,070.08 = 3,930.24 : x
  2. Step 2: Convert to fraction form
    8,031.36/12,070.08 = 3,930.24/x
  3. Step 3: Cross multiply
    8,031.36x = 12,070.08 × 3,930.24
  4. Step 4: Simplify right side
    8,031.36x = 47,438,311.22
  5. Step 5: Solve for x
    x = 47,438,311.22/8,031.36
  6. Step 6: Final answer
    x = 5,906.63

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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.