Home / 12,346.70-18,522.93-3,581.78

Finding the Fourth Proportional to 12,346.70, 18,522.93 and 3,581.78

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Solution

The fourth proportional to 12,346.70, 18,522.93 and 3,581.78 is: 5,373.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,346.70 : 18,522.93 = 3,581.78 : x
  2. Step 2: Convert to fraction form
    12,346.70/18,522.93 = 3,581.78/x
  3. Step 3: Cross multiply
    12,346.70x = 18,522.93 × 3,581.78
  4. Step 4: Simplify right side
    12,346.70x = 66,345,060.22
  5. Step 5: Solve for x
    x = 66,345,060.22/12,346.70
  6. Step 6: Final answer
    x = 5,373.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.