Home / 13,892.30-19,170.02-7,922.39

Finding the Fourth Proportional to 13,892.30, 19,170.02 and 7,922.39

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Solution

The fourth proportional to 13,892.30, 19,170.02 and 7,922.39 is: 10,932.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,892.30 : 19,170.02 = 7,922.39 : x
  2. Step 2: Convert to fraction form
    13,892.30/19,170.02 = 7,922.39/x
  3. Step 3: Cross multiply
    13,892.30x = 19,170.02 × 7,922.39
  4. Step 4: Simplify right side
    13,892.30x = 151,872,239.29
  5. Step 5: Solve for x
    x = 151,872,239.29/13,892.30
  6. Step 6: Final answer
    x = 10,932.12

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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.