Home / 13,971.07-19,274.61-7,999.57

Finding the Fourth Proportional to 13,971.07, 19,274.61 and 7,999.57

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Solution

The fourth proportional to 13,971.07, 19,274.61 and 7,999.57 is: 11,036.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.07 : 19,274.61 = 7,999.57 : x
  2. Step 2: Convert to fraction form
    13,971.07/19,274.61 = 7,999.57/x
  3. Step 3: Cross multiply
    13,971.07x = 19,274.61 × 7,999.57
  4. Step 4: Simplify right side
    13,971.07x = 154,188,591.92
  5. Step 5: Solve for x
    x = 154,188,591.92/13,971.07
  6. Step 6: Final answer
    x = 11,036.28

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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.