Home / 13,315.08-19,972.62-3,454.32

Finding the Fourth Proportional to 13,315.08, 19,972.62 and 3,454.32

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Solution

The fourth proportional to 13,315.08, 19,972.62 and 3,454.32 is: 5,181.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.08 : 19,972.62 = 3,454.32 : x
  2. Step 2: Convert to fraction form
    13,315.08/19,972.62 = 3,454.32/x
  3. Step 3: Cross multiply
    13,315.08x = 19,972.62 × 3,454.32
  4. Step 4: Simplify right side
    13,315.08x = 68,991,820.72
  5. Step 5: Solve for x
    x = 68,991,820.72/13,315.08
  6. Step 6: Final answer
    x = 5,181.48

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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.