Home / 19,343.53-26,705.71-12,640.37

Finding the Fourth Proportional to 19,343.53, 26,705.71 and 12,640.37

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Solution

The fourth proportional to 19,343.53, 26,705.71 and 12,640.37 is: 17,451.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,343.53 : 26,705.71 = 12,640.37 : x
  2. Step 2: Convert to fraction form
    19,343.53/26,705.71 = 12,640.37/x
  3. Step 3: Cross multiply
    19,343.53x = 26,705.71 × 12,640.37
  4. Step 4: Simplify right side
    19,343.53x = 337,570,090.68
  5. Step 5: Solve for x
    x = 337,570,090.68/19,343.53
  6. Step 6: Final answer
    x = 17,451.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.