Home / 12,580.20-18,874.24-5,188.14

Finding the Fourth Proportional to 12,580.20, 18,874.24 and 5,188.14

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Solution

The fourth proportional to 12,580.20, 18,874.24 and 5,188.14 is: 7,783.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,580.20 : 18,874.24 = 5,188.14 : x
  2. Step 2: Convert to fraction form
    12,580.20/18,874.24 = 5,188.14/x
  3. Step 3: Cross multiply
    12,580.20x = 18,874.24 × 5,188.14
  4. Step 4: Simplify right side
    12,580.20x = 97,922,199.51
  5. Step 5: Solve for x
    x = 97,922,199.51/12,580.20
  6. Step 6: Final answer
    x = 7,783.83

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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.