Home / 7,677.39-11,516.08-5,079.72

Finding the Fourth Proportional to 7,677.39, 11,516.08 and 5,079.72

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Solution

The fourth proportional to 7,677.39, 11,516.08 and 5,079.72 is: 7,619.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,677.39 : 11,516.08 = 5,079.72 : x
  2. Step 2: Convert to fraction form
    7,677.39/11,516.08 = 5,079.72/x
  3. Step 3: Cross multiply
    7,677.39x = 11,516.08 × 5,079.72
  4. Step 4: Simplify right side
    7,677.39x = 58,498,461.90
  5. Step 5: Solve for x
    x = 58,498,461.90/7,677.39
  6. Step 6: Final answer
    x = 7,619.58

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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.