Home / 19,145.60-28,718.40-5,999.30

Finding the Fourth Proportional to 19,145.60, 28,718.40 and 5,999.30

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Solution

The fourth proportional to 19,145.60, 28,718.40 and 5,999.30 is: 8,998.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,145.60 : 28,718.40 = 5,999.30 : x
  2. Step 2: Convert to fraction form
    19,145.60/28,718.40 = 5,999.30/x
  3. Step 3: Cross multiply
    19,145.60x = 28,718.40 × 5,999.30
  4. Step 4: Simplify right side
    19,145.60x = 172,290,297.12
  5. Step 5: Solve for x
    x = 172,290,297.12/19,145.60
  6. Step 6: Final answer
    x = 8,998.95

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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.