Home / 7,867.19-10,856.32-4,329.72

Finding the Fourth Proportional to 7,867.19, 10,856.32 and 4,329.72

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Solution

The fourth proportional to 7,867.19, 10,856.32 and 4,329.72 is: 5,974.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.19 : 10,856.32 = 4,329.72 : x
  2. Step 2: Convert to fraction form
    7,867.19/10,856.32 = 4,329.72/x
  3. Step 3: Cross multiply
    7,867.19x = 10,856.32 × 4,329.72
  4. Step 4: Simplify right side
    7,867.19x = 47,004,825.83
  5. Step 5: Solve for x
    x = 47,004,825.83/7,867.19
  6. Step 6: Final answer
    x = 5,974.79

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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.