Home / 8,165.85-11,258.29-5,289.46

Finding the Fourth Proportional to 8,165.85, 11,258.29 and 5,289.46

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Solution

The fourth proportional to 8,165.85, 11,258.29 and 5,289.46 is: 7,292.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,165.85 : 11,258.29 = 5,289.46 : x
  2. Step 2: Convert to fraction form
    8,165.85/11,258.29 = 5,289.46/x
  3. Step 3: Cross multiply
    8,165.85x = 11,258.29 × 5,289.46
  4. Step 4: Simplify right side
    8,165.85x = 59,550,274.62
  5. Step 5: Solve for x
    x = 59,550,274.62/8,165.85
  6. Step 6: Final answer
    x = 7,292.60

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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.