Home / 13,872.47-19,144.28-7,585.25

Finding the Fourth Proportional to 13,872.47, 19,144.28 and 7,585.25

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Solution

The fourth proportional to 13,872.47, 19,144.28 and 7,585.25 is: 10,467.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,872.47 : 19,144.28 = 7,585.25 : x
  2. Step 2: Convert to fraction form
    13,872.47/19,144.28 = 7,585.25/x
  3. Step 3: Cross multiply
    13,872.47x = 19,144.28 × 7,585.25
  4. Step 4: Simplify right side
    13,872.47x = 145,214,073.11
  5. Step 5: Solve for x
    x = 145,214,073.11/13,872.47
  6. Step 6: Final answer
    x = 10,467.79

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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.