Home / 19,343.30-26,705.40-12,640.15

Finding the Fourth Proportional to 19,343.30, 26,705.40 and 12,640.15

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Solution

The fourth proportional to 19,343.30, 26,705.40 and 12,640.15 is: 17,451.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,343.30 : 26,705.40 = 12,640.15 : x
  2. Step 2: Convert to fraction form
    19,343.30/26,705.40 = 12,640.15/x
  3. Step 3: Cross multiply
    19,343.30x = 26,705.40 × 12,640.15
  4. Step 4: Simplify right side
    19,343.30x = 337,560,168.67
  5. Step 5: Solve for x
    x = 337,560,168.67/19,343.30
  6. Step 6: Final answer
    x = 17,451.01

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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.