Home / 8,215.60-11,338.70-4,679.14

Finding the Fourth Proportional to 8,215.60, 11,338.70 and 4,679.14

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Solution

The fourth proportional to 8,215.60, 11,338.70 and 4,679.14 is: 6,457.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.60 : 11,338.70 = 4,679.14 : x
  2. Step 2: Convert to fraction form
    8,215.60/11,338.70 = 4,679.14/x
  3. Step 3: Cross multiply
    8,215.60x = 11,338.70 × 4,679.14
  4. Step 4: Simplify right side
    8,215.60x = 53,055,364.72
  5. Step 5: Solve for x
    x = 53,055,364.72/8,215.60
  6. Step 6: Final answer
    x = 6,457.88

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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.