Home / 7,946.90-11,920.35-4,447.70

Finding the Fourth Proportional to 7,946.90, 11,920.35 and 4,447.70

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Solution

The fourth proportional to 7,946.90, 11,920.35 and 4,447.70 is: 6,671.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,946.90 : 11,920.35 = 4,447.70 : x
  2. Step 2: Convert to fraction form
    7,946.90/11,920.35 = 4,447.70/x
  3. Step 3: Cross multiply
    7,946.90x = 11,920.35 × 4,447.70
  4. Step 4: Simplify right side
    7,946.90x = 53,018,140.70
  5. Step 5: Solve for x
    x = 53,018,140.70/7,946.90
  6. Step 6: Final answer
    x = 6,671.55

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Similar ratio
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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.