Home / 12,580.56-18,873.14-5,180.99

Finding the Fourth Proportional to 12,580.56, 18,873.14 and 5,180.99

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Solution

The fourth proportional to 12,580.56, 18,873.14 and 5,180.99 is: 7,772.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,580.56 : 18,873.14 = 5,180.99 : x
  2. Step 2: Convert to fraction form
    12,580.56/18,873.14 = 5,180.99/x
  3. Step 3: Cross multiply
    12,580.56x = 18,873.14 × 5,180.99
  4. Step 4: Simplify right side
    12,580.56x = 97,781,429.34
  5. Step 5: Solve for x
    x = 97,781,429.34/12,580.56
  6. Step 6: Final answer
    x = 7,772.42

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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.