Home / 13,864.88-19,132.62-7,897.16

Finding the Fourth Proportional to 13,864.88, 19,132.62 and 7,897.16

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Solution

The fourth proportional to 13,864.88, 19,132.62 and 7,897.16 is: 10,897.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,864.88 : 19,132.62 = 7,897.16 : x
  2. Step 2: Convert to fraction form
    13,864.88/19,132.62 = 7,897.16/x
  3. Step 3: Cross multiply
    13,864.88x = 19,132.62 × 7,897.16
  4. Step 4: Simplify right side
    13,864.88x = 151,093,361.36
  5. Step 5: Solve for x
    x = 151,093,361.36/13,864.88
  6. Step 6: Final answer
    x = 10,897.56

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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.