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Finding the Fourth Proportional to 12,671.59, 19,000.90 and 6,751.85

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Solution

The fourth proportional to 12,671.59, 19,000.90 and 6,751.85 is: 10,124.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,671.59 : 19,000.90 = 6,751.85 : x
  2. Step 2: Convert to fraction form
    12,671.59/19,000.90 = 6,751.85/x
  3. Step 3: Cross multiply
    12,671.59x = 19,000.90 × 6,751.85
  4. Step 4: Simplify right side
    12,671.59x = 128,291,192.91
  5. Step 5: Solve for x
    x = 128,291,192.91/12,671.59
  6. Step 6: Final answer
    x = 10,124.32

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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.