Home / 11,428.46-17,141.40-5,423.12

Finding the Fourth Proportional to 11,428.46, 17,141.40 and 5,423.12

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Solution

The fourth proportional to 11,428.46, 17,141.40 and 5,423.12 is: 8,134.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,428.46 : 17,141.40 = 5,423.12 : x
  2. Step 2: Convert to fraction form
    11,428.46/17,141.40 = 5,423.12/x
  3. Step 3: Cross multiply
    11,428.46x = 17,141.40 × 5,423.12
  4. Step 4: Simplify right side
    11,428.46x = 92,959,869.17
  5. Step 5: Solve for x
    x = 92,959,869.17/11,428.46
  6. Step 6: Final answer
    x = 8,134.07

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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.