Home / 7,717.15-11,542.76-6,442.95

Finding the Fourth Proportional to 7,717.15, 11,542.76 and 6,442.95

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Solution

The fourth proportional to 7,717.15, 11,542.76 and 6,442.95 is: 9,636.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,717.15 : 11,542.76 = 6,442.95 : x
  2. Step 2: Convert to fraction form
    7,717.15/11,542.76 = 6,442.95/x
  3. Step 3: Cross multiply
    7,717.15x = 11,542.76 × 6,442.95
  4. Step 4: Simplify right side
    7,717.15x = 74,369,393.33
  5. Step 5: Solve for x
    x = 74,369,393.33/7,717.15
  6. Step 6: Final answer
    x = 9,636.90

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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.