Home / 18,513.86-25,557.46-11,808.42

Finding the Fourth Proportional to 18,513.86, 25,557.46 and 11,808.42

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Solution

The fourth proportional to 18,513.86, 25,557.46 and 11,808.42 is: 16,300.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,513.86 : 25,557.46 = 11,808.42 : x
  2. Step 2: Convert to fraction form
    18,513.86/25,557.46 = 11,808.42/x
  3. Step 3: Cross multiply
    18,513.86x = 25,557.46 × 11,808.42
  4. Step 4: Simplify right side
    18,513.86x = 301,793,221.81
  5. Step 5: Solve for x
    x = 301,793,221.81/18,513.86
  6. Step 6: Final answer
    x = 16,300.93

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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.