Home / 19,600.84-29,412.06-8,515.72

Finding the Fourth Proportional to 19,600.84, 29,412.06 and 8,515.72

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Solution

The fourth proportional to 19,600.84, 29,412.06 and 8,515.72 is: 12,778.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,600.84 : 29,412.06 = 8,515.72 : x
  2. Step 2: Convert to fraction form
    19,600.84/29,412.06 = 8,515.72/x
  3. Step 3: Cross multiply
    19,600.84x = 29,412.06 × 8,515.72
  4. Step 4: Simplify right side
    19,600.84x = 250,464,867.58
  5. Step 5: Solve for x
    x = 250,464,867.58/19,600.84
  6. Step 6: Final answer
    x = 12,778.27

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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.