Home / 13,551.60-18,709.92-8,522.76

Finding the Fourth Proportional to 13,551.60, 18,709.92 and 8,522.76

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Solution

The fourth proportional to 13,551.60, 18,709.92 and 8,522.76 is: 11,766.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,551.60 : 18,709.92 = 8,522.76 : x
  2. Step 2: Convert to fraction form
    13,551.60/18,709.92 = 8,522.76/x
  3. Step 3: Cross multiply
    13,551.60x = 18,709.92 × 8,522.76
  4. Step 4: Simplify right side
    13,551.60x = 159,460,157.78
  5. Step 5: Solve for x
    x = 159,460,157.78/13,551.60
  6. Step 6: Final answer
    x = 11,766.89

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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.