Home / 19,830.60-29,738.18-9,963

Finding the Fourth Proportional to 19,830.60, 29,738.18 and 9,963

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Solution

The fourth proportional to 19,830.60, 29,738.18 and 9,963 is: 14,940.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,830.60 : 29,738.18 = 9,963 : x
  2. Step 2: Convert to fraction form
    19,830.60/29,738.18 = 9,963/x
  3. Step 3: Cross multiply
    19,830.60x = 29,738.18 × 9,963
  4. Step 4: Simplify right side
    19,830.60x = 296,281,512.25
  5. Step 5: Solve for x
    x = 296,281,512.25/19,830.60
  6. Step 6: Final answer
    x = 14,940.62

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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.