Home / 7,712.06-10,640.30-4,726.80

Finding the Fourth Proportional to 7,712.06, 10,640.30 and 4,726.80

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Solution

The fourth proportional to 7,712.06, 10,640.30 and 4,726.80 is: 6,521.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,712.06 : 10,640.30 = 4,726.80 : x
  2. Step 2: Convert to fraction form
    7,712.06/10,640.30 = 4,726.80/x
  3. Step 3: Cross multiply
    7,712.06x = 10,640.30 × 4,726.80
  4. Step 4: Simplify right side
    7,712.06x = 50,294,546.41
  5. Step 5: Solve for x
    x = 50,294,546.41/7,712.06
  6. Step 6: Final answer
    x = 6,521.55

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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.