Home / 7,801.48-11,691.84-4,286.20

Finding the Fourth Proportional to 7,801.48, 11,691.84 and 4,286.20

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Solution

The fourth proportional to 7,801.48, 11,691.84 and 4,286.20 is: 6,423.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,801.48 : 11,691.84 = 4,286.20 : x
  2. Step 2: Convert to fraction form
    7,801.48/11,691.84 = 4,286.20/x
  3. Step 3: Cross multiply
    7,801.48x = 11,691.84 × 4,286.20
  4. Step 4: Simplify right side
    7,801.48x = 50,113,564.61
  5. Step 5: Solve for x
    x = 50,113,564.61/7,801.48
  6. Step 6: Final answer
    x = 6,423.60

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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.