Home / 18,956.12-26,159.06-10,999.12

Finding the Fourth Proportional to 18,956.12, 26,159.06 and 10,999.12

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Solution

The fourth proportional to 18,956.12, 26,159.06 and 10,999.12 is: 15,178.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,956.12 : 26,159.06 = 10,999.12 : x
  2. Step 2: Convert to fraction form
    18,956.12/26,159.06 = 10,999.12/x
  3. Step 3: Cross multiply
    18,956.12x = 26,159.06 × 10,999.12
  4. Step 4: Simplify right side
    18,956.12x = 287,726,640.03
  5. Step 5: Solve for x
    x = 287,726,640.03/18,956.12
  6. Step 6: Final answer
    x = 15,178.56

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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.