Home / 18,613.19-25,699.64-11,452.75

Finding the Fourth Proportional to 18,613.19, 25,699.64 and 11,452.75

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Solution

The fourth proportional to 18,613.19, 25,699.64 and 11,452.75 is: 15,813.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,613.19 : 25,699.64 = 11,452.75 : x
  2. Step 2: Convert to fraction form
    18,613.19/25,699.64 = 11,452.75/x
  3. Step 3: Cross multiply
    18,613.19x = 25,699.64 × 11,452.75
  4. Step 4: Simplify right side
    18,613.19x = 294,331,430.50
  5. Step 5: Solve for x
    x = 294,331,430.50/18,613.19
  6. Step 6: Final answer
    x = 15,813.05

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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.