Home / 6,516.17-8,988.99-4,122.09

Finding the Fourth Proportional to 6,516.17, 8,988.99 and 4,122.09

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Solution

The fourth proportional to 6,516.17, 8,988.99 and 4,122.09 is: 5,686.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,516.17 : 8,988.99 = 4,122.09 : x
  2. Step 2: Convert to fraction form
    6,516.17/8,988.99 = 4,122.09/x
  3. Step 3: Cross multiply
    6,516.17x = 8,988.99 × 4,122.09
  4. Step 4: Simplify right side
    6,516.17x = 37,053,425.79
  5. Step 5: Solve for x
    x = 37,053,425.79/6,516.17
  6. Step 6: Final answer
    x = 5,686.39

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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.