Home / 8,165.60-11,258.10-5,289.25

Finding the Fourth Proportional to 8,165.60, 11,258.10 and 5,289.25

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Solution

The fourth proportional to 8,165.60, 11,258.10 and 5,289.25 is: 7,292.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,165.60 : 11,258.10 = 5,289.25 : x
  2. Step 2: Convert to fraction form
    8,165.60/11,258.10 = 5,289.25/x
  3. Step 3: Cross multiply
    8,165.60x = 11,258.10 × 5,289.25
  4. Step 4: Simplify right side
    8,165.60x = 59,546,905.43
  5. Step 5: Solve for x
    x = 59,546,905.43/8,165.60
  6. Step 6: Final answer
    x = 7,292.41

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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.