Home / 13,210,050.12-18,212,997.87-8,555,613.54

Finding the Fourth Proportional to 13,210,050.12, 18,212,997.87 and 8,555,613.54

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Solution

The fourth proportional to 13,210,050.12, 18,212,997.87 and 8,555,613.54 is: 11,795,819.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210,050.12 : 18,212,997.87 = 8,555,613.54 : x
  2. Step 2: Convert to fraction form
    13,210,050.12/18,212,997.87 = 8,555,613.54/x
  3. Step 3: Cross multiply
    13,210,050.12x = 18,212,997.87 × 8,555,613.54
  4. Step 4: Simplify right side
    13,210,050.12x = 155,823,371,180,563.16
  5. Step 5: Solve for x
    x = 155,823,371,180,563.16/13,210,050.12
  6. Step 6: Final answer
    x = 11,795,819.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.