Home / 12,640.70-18,952.95-5,250.26

Finding the Fourth Proportional to 12,640.70, 18,952.95 and 5,250.26

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Solution

The fourth proportional to 12,640.70, 18,952.95 and 5,250.26 is: 7,872.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,640.70 : 18,952.95 = 5,250.26 : x
  2. Step 2: Convert to fraction form
    12,640.70/18,952.95 = 5,250.26/x
  3. Step 3: Cross multiply
    12,640.70x = 18,952.95 × 5,250.26
  4. Step 4: Simplify right side
    12,640.70x = 99,507,982.34
  5. Step 5: Solve for x
    x = 99,507,982.34/12,640.70
  6. Step 6: Final answer
    x = 7,872.03

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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.