Home / 7,115.14-9,820.66-4,322.98

Finding the Fourth Proportional to 7,115.14, 9,820.66 and 4,322.98

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Solution

The fourth proportional to 7,115.14, 9,820.66 and 4,322.98 is: 5,966.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,115.14 : 9,820.66 = 4,322.98 : x
  2. Step 2: Convert to fraction form
    7,115.14/9,820.66 = 4,322.98/x
  3. Step 3: Cross multiply
    7,115.14x = 9,820.66 × 4,322.98
  4. Step 4: Simplify right side
    7,115.14x = 42,454,516.77
  5. Step 5: Solve for x
    x = 42,454,516.77/7,115.14
  6. Step 6: Final answer
    x = 5,966.79

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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.