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Finding the Fourth Proportional to 9,883.90, 13,641.04 and 6,483.78

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Solution

The fourth proportional to 9,883.90, 13,641.04 and 6,483.78 is: 8,948.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,883.90 : 13,641.04 = 6,483.78 : x
  2. Step 2: Convert to fraction form
    9,883.90/13,641.04 = 6,483.78/x
  3. Step 3: Cross multiply
    9,883.90x = 13,641.04 × 6,483.78
  4. Step 4: Simplify right side
    9,883.90x = 88,445,502.33
  5. Step 5: Solve for x
    x = 88,445,502.33/9,883.90
  6. Step 6: Final answer
    x = 8,948.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.