Home / 7,011.87-9,676.35-3,825.15

Finding the Fourth Proportional to 7,011.87, 9,676.35 and 3,825.15

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Solution

The fourth proportional to 7,011.87, 9,676.35 and 3,825.15 is: 5,278.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,011.87 : 9,676.35 = 3,825.15 : x
  2. Step 2: Convert to fraction form
    7,011.87/9,676.35 = 3,825.15/x
  3. Step 3: Cross multiply
    7,011.87x = 9,676.35 × 3,825.15
  4. Step 4: Simplify right side
    7,011.87x = 37,013,490.20
  5. Step 5: Solve for x
    x = 37,013,490.20/7,011.87
  6. Step 6: Final answer
    x = 5,278.69

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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.