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Finding the Fourth Proportional to 11,397.60, 17,099.60 and 5,554.40

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Solution

The fourth proportional to 11,397.60, 17,099.60 and 5,554.40 is: 8,333.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,397.60 : 17,099.60 = 5,554.40 : x
  2. Step 2: Convert to fraction form
    11,397.60/17,099.60 = 5,554.40/x
  3. Step 3: Cross multiply
    11,397.60x = 17,099.60 × 5,554.40
  4. Step 4: Simplify right side
    11,397.60x = 94,978,018.24
  5. Step 5: Solve for x
    x = 94,978,018.24/11,397.60
  6. Step 6: Final answer
    x = 8,333.16

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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.