Home / 8,630.91-11,916.54-6,610.74

Finding the Fourth Proportional to 8,630.91, 11,916.54 and 6,610.74

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Solution

The fourth proportional to 8,630.91, 11,916.54 and 6,610.74 is: 9,127.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,630.91 : 11,916.54 = 6,610.74 : x
  2. Step 2: Convert to fraction form
    8,630.91/11,916.54 = 6,610.74/x
  3. Step 3: Cross multiply
    8,630.91x = 11,916.54 × 6,610.74
  4. Step 4: Simplify right side
    8,630.91x = 78,777,147.64
  5. Step 5: Solve for x
    x = 78,777,147.64/8,630.91
  6. Step 6: Final answer
    x = 9,127.33

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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.