Home / 19,509.63-29,268.78-7,664.55

Finding the Fourth Proportional to 19,509.63, 29,268.78 and 7,664.55

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Solution

The fourth proportional to 19,509.63, 29,268.78 and 7,664.55 is: 11,498.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,509.63 : 29,268.78 = 7,664.55 : x
  2. Step 2: Convert to fraction form
    19,509.63/29,268.78 = 7,664.55/x
  3. Step 3: Cross multiply
    19,509.63x = 29,268.78 × 7,664.55
  4. Step 4: Simplify right side
    19,509.63x = 224,332,027.75
  5. Step 5: Solve for x
    x = 224,332,027.75/19,509.63
  6. Step 6: Final answer
    x = 11,498.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.