Home / 13,892.69-19,170.70-7,842.60

Finding the Fourth Proportional to 13,892.69, 19,170.70 and 7,842.60

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Solution

The fourth proportional to 13,892.69, 19,170.70 and 7,842.60 is: 10,822.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,892.69 : 19,170.70 = 7,842.60 : x
  2. Step 2: Convert to fraction form
    13,892.69/19,170.70 = 7,842.60/x
  3. Step 3: Cross multiply
    13,892.69x = 19,170.70 × 7,842.60
  4. Step 4: Simplify right side
    13,892.69x = 150,348,092.61
  5. Step 5: Solve for x
    x = 150,348,092.61/13,892.69
  6. Step 6: Final answer
    x = 10,822.10

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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.