Home / 18,999.08-28,499.21-6,518.93

Finding the Fourth Proportional to 18,999.08, 28,499.21 and 6,518.93

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Solution

The fourth proportional to 18,999.08, 28,499.21 and 6,518.93 is: 9,778.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,999.08 : 28,499.21 = 6,518.93 : x
  2. Step 2: Convert to fraction form
    18,999.08/28,499.21 = 6,518.93/x
  3. Step 3: Cross multiply
    18,999.08x = 28,499.21 × 6,518.93
  4. Step 4: Simplify right side
    18,999.08x = 185,784,393.70
  5. Step 5: Solve for x
    x = 185,784,393.70/18,999.08
  6. Step 6: Final answer
    x = 9,778.60

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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.