Home / 19,785.34-29,685.03-6,637.69

Finding the Fourth Proportional to 19,785.34, 29,685.03 and 6,637.69

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Solution

The fourth proportional to 19,785.34, 29,685.03 and 6,637.69 is: 9,958.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,785.34 : 29,685.03 = 6,637.69 : x
  2. Step 2: Convert to fraction form
    19,785.34/29,685.03 = 6,637.69/x
  3. Step 3: Cross multiply
    19,785.34x = 29,685.03 × 6,637.69
  4. Step 4: Simplify right side
    19,785.34x = 197,040,026.78
  5. Step 5: Solve for x
    x = 197,040,026.78/19,785.34
  6. Step 6: Final answer
    x = 9,958.89

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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.