Home / 13,260.60-18,295.74-8,228.76

Finding the Fourth Proportional to 13,260.60, 18,295.74 and 8,228.76

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Solution

The fourth proportional to 13,260.60, 18,295.74 and 8,228.76 is: 11,353.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260.60 : 18,295.74 = 8,228.76 : x
  2. Step 2: Convert to fraction form
    13,260.60/18,295.74 = 8,228.76/x
  3. Step 3: Cross multiply
    13,260.60x = 18,295.74 × 8,228.76
  4. Step 4: Simplify right side
    13,260.60x = 150,551,253.48
  5. Step 5: Solve for x
    x = 150,551,253.48/13,260.60
  6. Step 6: Final answer
    x = 11,353.28

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Double scale
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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.