Home / 13,943.07-19,235.16-8,278.04

Finding the Fourth Proportional to 13,943.07, 19,235.16 and 8,278.04

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Solution

The fourth proportional to 13,943.07, 19,235.16 and 8,278.04 is: 11,419.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.07 : 19,235.16 = 8,278.04 : x
  2. Step 2: Convert to fraction form
    13,943.07/19,235.16 = 8,278.04/x
  3. Step 3: Cross multiply
    13,943.07x = 19,235.16 × 8,278.04
  4. Step 4: Simplify right side
    13,943.07x = 159,229,471.97
  5. Step 5: Solve for x
    x = 159,229,471.97/13,943.07
  6. Step 6: Final answer
    x = 11,419.97

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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.