Home / 7,867.47-10,857.11-4,330.66

Finding the Fourth Proportional to 7,867.47, 10,857.11 and 4,330.66

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Solution

The fourth proportional to 7,867.47, 10,857.11 and 4,330.66 is: 5,976.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.47 : 10,857.11 = 4,330.66 : x
  2. Step 2: Convert to fraction form
    7,867.47/10,857.11 = 4,330.66/x
  3. Step 3: Cross multiply
    7,867.47x = 10,857.11 × 4,330.66
  4. Step 4: Simplify right side
    7,867.47x = 47,018,435.68
  5. Step 5: Solve for x
    x = 47,018,435.68/7,867.47
  6. Step 6: Final answer
    x = 5,976.31

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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.