Home / 18,979.08-28,485.98-9,625.56

Finding the Fourth Proportional to 18,979.08, 28,485.98 and 9,625.56

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Solution

The fourth proportional to 18,979.08, 28,485.98 and 9,625.56 is: 14,447.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,979.08 : 28,485.98 = 9,625.56 : x
  2. Step 2: Convert to fraction form
    18,979.08/28,485.98 = 9,625.56/x
  3. Step 3: Cross multiply
    18,979.08x = 28,485.98 × 9,625.56
  4. Step 4: Simplify right side
    18,979.08x = 274,193,444.94
  5. Step 5: Solve for x
    x = 274,193,444.94/18,979.08
  6. Step 6: Final answer
    x = 14,447.14

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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.