Home / 7,867.67-10,853.79-4,679.15

Finding the Fourth Proportional to 7,867.67, 10,853.79 and 4,679.15

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Solution

The fourth proportional to 7,867.67, 10,853.79 and 4,679.15 is: 6,455.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.67 : 10,853.79 = 4,679.15 : x
  2. Step 2: Convert to fraction form
    7,867.67/10,853.79 = 4,679.15/x
  3. Step 3: Cross multiply
    7,867.67x = 10,853.79 × 4,679.15
  4. Step 4: Simplify right side
    7,867.67x = 50,786,457.21
  5. Step 5: Solve for x
    x = 50,786,457.21/7,867.67
  6. Step 6: Final answer
    x = 6,455.09

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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.