Home / 11,865.60-17,800.32-5,291.64

Finding the Fourth Proportional to 11,865.60, 17,800.32 and 5,291.64

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Solution

The fourth proportional to 11,865.60, 17,800.32 and 5,291.64 is: 7,938.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,865.60 : 17,800.32 = 5,291.64 : x
  2. Step 2: Convert to fraction form
    11,865.60/17,800.32 = 5,291.64/x
  3. Step 3: Cross multiply
    11,865.60x = 17,800.32 × 5,291.64
  4. Step 4: Simplify right side
    11,865.60x = 94,192,885.32
  5. Step 5: Solve for x
    x = 94,192,885.32/11,865.60
  6. Step 6: Final answer
    x = 7,938.32

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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.