Home / 8,910.81-12,298.26-5,134.53

Finding the Fourth Proportional to 8,910.81, 12,298.26 and 5,134.53

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Solution

The fourth proportional to 8,910.81, 12,298.26 and 5,134.53 is: 7,086.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,910.81 : 12,298.26 = 5,134.53 : x
  2. Step 2: Convert to fraction form
    8,910.81/12,298.26 = 5,134.53/x
  3. Step 3: Cross multiply
    8,910.81x = 12,298.26 × 5,134.53
  4. Step 4: Simplify right side
    8,910.81x = 63,145,850.29
  5. Step 5: Solve for x
    x = 63,145,850.29/8,910.81
  6. Step 6: Final answer
    x = 7,086.43

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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.