Home / 12,951.29-19,428.03-5,553.99

Finding the Fourth Proportional to 12,951.29, 19,428.03 and 5,553.99

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Solution

The fourth proportional to 12,951.29, 19,428.03 and 5,553.99 is: 8,331.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,951.29 : 19,428.03 = 5,553.99 : x
  2. Step 2: Convert to fraction form
    12,951.29/19,428.03 = 5,553.99/x
  3. Step 3: Cross multiply
    12,951.29x = 19,428.03 × 5,553.99
  4. Step 4: Simplify right side
    12,951.29x = 107,903,084.34
  5. Step 5: Solve for x
    x = 107,903,084.34/12,951.29
  6. Step 6: Final answer
    x = 8,331.46

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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.