Home / 19,449.89-26,840.46-11,388.30

Finding the Fourth Proportional to 19,449.89, 26,840.46 and 11,388.30

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Solution

The fourth proportional to 19,449.89, 26,840.46 and 11,388.30 is: 15,715.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,449.89 : 26,840.46 = 11,388.30 : x
  2. Step 2: Convert to fraction form
    19,449.89/26,840.46 = 11,388.30/x
  3. Step 3: Cross multiply
    19,449.89x = 26,840.46 × 11,388.30
  4. Step 4: Simplify right side
    19,449.89x = 305,667,210.62
  5. Step 5: Solve for x
    x = 305,667,210.62/19,449.89
  6. Step 6: Final answer
    x = 15,715.63

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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.