Home / 19,487.60-29,212.88-6,330.78

Finding the Fourth Proportional to 19,487.60, 29,212.88 and 6,330.78

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Solution

The fourth proportional to 19,487.60, 29,212.88 and 6,330.78 is: 9,490.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,487.60 : 29,212.88 = 6,330.78 : x
  2. Step 2: Convert to fraction form
    19,487.60/29,212.88 = 6,330.78/x
  3. Step 3: Cross multiply
    19,487.60x = 29,212.88 × 6,330.78
  4. Step 4: Simplify right side
    19,487.60x = 184,940,316.45
  5. Step 5: Solve for x
    x = 184,940,316.45/19,487.60
  6. Step 6: Final answer
    x = 9,490.15

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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.