Home / 7,867.16-10,856.28-4,329.69

Finding the Fourth Proportional to 7,867.16, 10,856.28 and 4,329.69

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Solution

The fourth proportional to 7,867.16, 10,856.28 and 4,329.69 is: 5,974.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.16 : 10,856.28 = 4,329.69 : x
  2. Step 2: Convert to fraction form
    7,867.16/10,856.28 = 4,329.69/x
  3. Step 3: Cross multiply
    7,867.16x = 10,856.28 × 4,329.69
  4. Step 4: Simplify right side
    7,867.16x = 47,004,278.12
  5. Step 5: Solve for x
    x = 47,004,278.12/7,867.16
  6. Step 6: Final answer
    x = 5,974.75

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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.