Home / 12,873.08-19,313.51-5,380.28

Finding the Fourth Proportional to 12,873.08, 19,313.51 and 5,380.28

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Solution

The fourth proportional to 12,873.08, 19,313.51 and 5,380.28 is: 8,072.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,873.08 : 19,313.51 = 5,380.28 : x
  2. Step 2: Convert to fraction form
    12,873.08/19,313.51 = 5,380.28/x
  3. Step 3: Cross multiply
    12,873.08x = 19,313.51 × 5,380.28
  4. Step 4: Simplify right side
    12,873.08x = 103,912,008.47
  5. Step 5: Solve for x
    x = 103,912,008.47/12,873.08
  6. Step 6: Final answer
    x = 8,072.04

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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.