Home / 12,911.52-19,370.03-4,152.58

Finding the Fourth Proportional to 12,911.52, 19,370.03 and 4,152.58

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Solution

The fourth proportional to 12,911.52, 19,370.03 and 4,152.58 is: 6,229.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,911.52 : 19,370.03 = 4,152.58 : x
  2. Step 2: Convert to fraction form
    12,911.52/19,370.03 = 4,152.58/x
  3. Step 3: Cross multiply
    12,911.52x = 19,370.03 × 4,152.58
  4. Step 4: Simplify right side
    12,911.52x = 80,435,599.18
  5. Step 5: Solve for x
    x = 80,435,599.18/12,911.52
  6. Step 6: Final answer
    x = 6,229.75

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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.