Home / 18,998.10-28,494.45-6,518.70

Finding the Fourth Proportional to 18,998.10, 28,494.45 and 6,518.70

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Solution

The fourth proportional to 18,998.10, 28,494.45 and 6,518.70 is: 9,777.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,998.10 : 28,494.45 = 6,518.70 : x
  2. Step 2: Convert to fraction form
    18,998.10/28,494.45 = 6,518.70/x
  3. Step 3: Cross multiply
    18,998.10x = 28,494.45 × 6,518.70
  4. Step 4: Simplify right side
    18,998.10x = 185,746,771.22
  5. Step 5: Solve for x
    x = 185,746,771.22/18,998.10
  6. Step 6: Final answer
    x = 9,777.12

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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.