Home / 6,627.76-9,142.50-4,139.44

Finding the Fourth Proportional to 6,627.76, 9,142.50 and 4,139.44

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Solution

The fourth proportional to 6,627.76, 9,142.50 and 4,139.44 is: 5,710.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,627.76 : 9,142.50 = 4,139.44 : x
  2. Step 2: Convert to fraction form
    6,627.76/9,142.50 = 4,139.44/x
  3. Step 3: Cross multiply
    6,627.76x = 9,142.50 × 4,139.44
  4. Step 4: Simplify right side
    6,627.76x = 37,844,822.87
  5. Step 5: Solve for x
    x = 37,844,822.87/6,627.76
  6. Step 6: Final answer
    x = 5,710.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.