Home / 13,010.45-19,501.68-5,618.39

Finding the Fourth Proportional to 13,010.45, 19,501.68 and 5,618.39

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Solution

The fourth proportional to 13,010.45, 19,501.68 and 5,618.39 is: 8,421.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,010.45 : 19,501.68 = 5,618.39 : x
  2. Step 2: Convert to fraction form
    13,010.45/19,501.68 = 5,618.39/x
  3. Step 3: Cross multiply
    13,010.45x = 19,501.68 × 5,618.39
  4. Step 4: Simplify right side
    13,010.45x = 109,568,043.90
  5. Step 5: Solve for x
    x = 109,568,043.90/13,010.45
  6. Step 6: Final answer
    x = 8,421.54

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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.