Home / 7,760.97-10,712.15-4,929.70

Finding the Fourth Proportional to 7,760.97, 10,712.15 and 4,929.70

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Solution

The fourth proportional to 7,760.97, 10,712.15 and 4,929.70 is: 6,804.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,760.97 : 10,712.15 = 4,929.70 : x
  2. Step 2: Convert to fraction form
    7,760.97/10,712.15 = 4,929.70/x
  3. Step 3: Cross multiply
    7,760.97x = 10,712.15 × 4,929.70
  4. Step 4: Simplify right side
    7,760.97x = 52,807,685.86
  5. Step 5: Solve for x
    x = 52,807,685.86/7,760.97
  6. Step 6: Final answer
    x = 6,804.26

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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.