Home / 19,138.16-26,407.46-10,640.04

Finding the Fourth Proportional to 19,138.16, 26,407.46 and 10,640.04

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Solution

The fourth proportional to 19,138.16, 26,407.46 and 10,640.04 is: 14,681.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,138.16 : 26,407.46 = 10,640.04 : x
  2. Step 2: Convert to fraction form
    19,138.16/26,407.46 = 10,640.04/x
  3. Step 3: Cross multiply
    19,138.16x = 26,407.46 × 10,640.04
  4. Step 4: Simplify right side
    19,138.16x = 280,976,377.50
  5. Step 5: Solve for x
    x = 280,976,377.50/19,138.16
  6. Step 6: Final answer
    x = 14,681.48

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