Home / 13,874.78-19,147.29-7,587.26

Finding the Fourth Proportional to 13,874.78, 19,147.29 and 7,587.26

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Solution

The fourth proportional to 13,874.78, 19,147.29 and 7,587.26 is: 10,470.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,874.78 : 19,147.29 = 7,587.26 : x
  2. Step 2: Convert to fraction form
    13,874.78/19,147.29 = 7,587.26/x
  3. Step 3: Cross multiply
    13,874.78x = 19,147.29 × 7,587.26
  4. Step 4: Simplify right side
    13,874.78x = 145,275,467.53
  5. Step 5: Solve for x
    x = 145,275,467.53/13,874.78
  6. Step 6: Final answer
    x = 10,470.47

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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.