Home / 13,189.48-19,777.38-5,790.58

Finding the Fourth Proportional to 13,189.48, 19,777.38 and 5,790.58

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Solution

The fourth proportional to 13,189.48, 19,777.38 and 5,790.58 is: 8,682.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,189.48 : 19,777.38 = 5,790.58 : x
  2. Step 2: Convert to fraction form
    13,189.48/19,777.38 = 5,790.58/x
  3. Step 3: Cross multiply
    13,189.48x = 19,777.38 × 5,790.58
  4. Step 4: Simplify right side
    13,189.48x = 114,522,501.08
  5. Step 5: Solve for x
    x = 114,522,501.08/13,189.48
  6. Step 6: Final answer
    x = 8,682.87

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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.