Home / 7,865.11-11,800.50-3,966.58

Finding the Fourth Proportional to 7,865.11, 11,800.50 and 3,966.58

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Solution

The fourth proportional to 7,865.11, 11,800.50 and 3,966.58 is: 5,951.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,865.11 : 11,800.50 = 3,966.58 : x
  2. Step 2: Convert to fraction form
    7,865.11/11,800.50 = 3,966.58/x
  3. Step 3: Cross multiply
    7,865.11x = 11,800.50 × 3,966.58
  4. Step 4: Simplify right side
    7,865.11x = 46,807,627.29
  5. Step 5: Solve for x
    x = 46,807,627.29/7,865.11
  6. Step 6: Final answer
    x = 5,951.30

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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.