Home / 12,648.62-18,972.93-4,328.70

Finding the Fourth Proportional to 12,648.62, 18,972.93 and 4,328.70

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Solution

The fourth proportional to 12,648.62, 18,972.93 and 4,328.70 is: 6,493.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,648.62 : 18,972.93 = 4,328.70 : x
  2. Step 2: Convert to fraction form
    12,648.62/18,972.93 = 4,328.70/x
  3. Step 3: Cross multiply
    12,648.62x = 18,972.93 × 4,328.70
  4. Step 4: Simplify right side
    12,648.62x = 82,128,122.09
  5. Step 5: Solve for x
    x = 82,128,122.09/12,648.62
  6. Step 6: Final answer
    x = 6,493.05

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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.