Home / 12,812.70-19,224.98-4,912.57

Finding the Fourth Proportional to 12,812.70, 19,224.98 and 4,912.57

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Solution

The fourth proportional to 12,812.70, 19,224.98 and 4,912.57 is: 7,371.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,812.70 : 19,224.98 = 4,912.57 : x
  2. Step 2: Convert to fraction form
    12,812.70/19,224.98 = 4,912.57/x
  3. Step 3: Cross multiply
    12,812.70x = 19,224.98 × 4,912.57
  4. Step 4: Simplify right side
    12,812.70x = 94,444,060.00
  5. Step 5: Solve for x
    x = 94,444,060.00/12,812.70
  6. Step 6: Final answer
    x = 7,371.13

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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.