Home / 13,181.57-18,210.33-8,654.99

Finding the Fourth Proportional to 13,181.57, 18,210.33 and 8,654.99

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Solution

The fourth proportional to 13,181.57, 18,210.33 and 8,654.99 is: 11,956.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,181.57 : 18,210.33 = 8,654.99 : x
  2. Step 2: Convert to fraction form
    13,181.57/18,210.33 = 8,654.99/x
  3. Step 3: Cross multiply
    13,181.57x = 18,210.33 × 8,654.99
  4. Step 4: Simplify right side
    13,181.57x = 157,610,180.77
  5. Step 5: Solve for x
    x = 157,610,180.77/13,181.57
  6. Step 6: Final answer
    x = 11,956.86

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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.