Home / 12,031.20-16,603.38-6,725.70

Finding the Fourth Proportional to 12,031.20, 16,603.38 and 6,725.70

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Solution

The fourth proportional to 12,031.20, 16,603.38 and 6,725.70 is: 9,281.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,031.20 : 16,603.38 = 6,725.70 : x
  2. Step 2: Convert to fraction form
    12,031.20/16,603.38 = 6,725.70/x
  3. Step 3: Cross multiply
    12,031.20x = 16,603.38 × 6,725.70
  4. Step 4: Simplify right side
    12,031.20x = 111,669,352.87
  5. Step 5: Solve for x
    x = 111,669,352.87/12,031.20
  6. Step 6: Final answer
    x = 9,281.65

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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.