Home / 12,630.52-18,951.25-6,780.29

Finding the Fourth Proportional to 12,630.52, 18,951.25 and 6,780.29

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Solution

The fourth proportional to 12,630.52, 18,951.25 and 6,780.29 is: 10,173.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,630.52 : 18,951.25 = 6,780.29 : x
  2. Step 2: Convert to fraction form
    12,630.52/18,951.25 = 6,780.29/x
  3. Step 3: Cross multiply
    12,630.52x = 18,951.25 × 6,780.29
  4. Step 4: Simplify right side
    12,630.52x = 128,495,001.29
  5. Step 5: Solve for x
    x = 128,495,001.29/12,630.52
  6. Step 6: Final answer
    x = 10,173.38

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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.