Home / 12,579.03-18,864.23-5,180.09

Finding the Fourth Proportional to 12,579.03, 18,864.23 and 5,180.09

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Solution

The fourth proportional to 12,579.03, 18,864.23 and 5,180.09 is: 7,768.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,579.03 : 18,864.23 = 5,180.09 : x
  2. Step 2: Convert to fraction form
    12,579.03/18,864.23 = 5,180.09/x
  3. Step 3: Cross multiply
    12,579.03x = 18,864.23 × 5,180.09
  4. Step 4: Simplify right side
    12,579.03x = 97,718,288.96
  5. Step 5: Solve for x
    x = 97,718,288.96/12,579.03
  6. Step 6: Final answer
    x = 7,768.35

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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.