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Finding the Fourth Proportional to 9,893.60, 14,840.40 and 6,207.20

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Solution

The fourth proportional to 9,893.60, 14,840.40 and 6,207.20 is: 9,310.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,893.60 : 14,840.40 = 6,207.20 : x
  2. Step 2: Convert to fraction form
    9,893.60/14,840.40 = 6,207.20/x
  3. Step 3: Cross multiply
    9,893.60x = 14,840.40 × 6,207.20
  4. Step 4: Simplify right side
    9,893.60x = 92,117,330.88
  5. Step 5: Solve for x
    x = 92,117,330.88/9,893.60
  6. Step 6: Final answer
    x = 9,310.80

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1.5x scale

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.