Home / 8,958.09-13,437.81-3,115.17

Finding the Fourth Proportional to 8,958.09, 13,437.81 and 3,115.17

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Solution

The fourth proportional to 8,958.09, 13,437.81 and 3,115.17 is: 4,672.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,958.09 : 13,437.81 = 3,115.17 : x
  2. Step 2: Convert to fraction form
    8,958.09/13,437.81 = 3,115.17/x
  3. Step 3: Cross multiply
    8,958.09x = 13,437.81 × 3,115.17
  4. Step 4: Simplify right side
    8,958.09x = 41,861,062.58
  5. Step 5: Solve for x
    x = 41,861,062.58/8,958.09
  6. Step 6: Final answer
    x = 4,672.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.