Home / 7,901.16-10,891.01-6,219.91

Finding the Fourth Proportional to 7,901.16, 10,891.01 and 6,219.91

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Solution

The fourth proportional to 7,901.16, 10,891.01 and 6,219.91 is: 8,573.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,901.16 : 10,891.01 = 6,219.91 : x
  2. Step 2: Convert to fraction form
    7,901.16/10,891.01 = 6,219.91/x
  3. Step 3: Cross multiply
    7,901.16x = 10,891.01 × 6,219.91
  4. Step 4: Simplify right side
    7,901.16x = 67,741,034.92
  5. Step 5: Solve for x
    x = 67,741,034.92/7,901.16
  6. Step 6: Final answer
    x = 8,573.55

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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.