Home / 7,721.23-10,655.49-4,738.71

Finding the Fourth Proportional to 7,721.23, 10,655.49 and 4,738.71

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Solution

The fourth proportional to 7,721.23, 10,655.49 and 4,738.71 is: 6,539.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.23 : 10,655.49 = 4,738.71 : x
  2. Step 2: Convert to fraction form
    7,721.23/10,655.49 = 4,738.71/x
  3. Step 3: Cross multiply
    7,721.23x = 10,655.49 × 4,738.71
  4. Step 4: Simplify right side
    7,721.23x = 50,493,261.48
  5. Step 5: Solve for x
    x = 50,493,261.48/7,721.23
  6. Step 6: Final answer
    x = 6,539.54

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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.