Home / 18,830.60-25,971.72-13,793

Finding the Fourth Proportional to 18,830.60, 25,971.72 and 13,793

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Solution

The fourth proportional to 18,830.60, 25,971.72 and 13,793 is: 19,023.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,830.60 : 25,971.72 = 13,793 : x
  2. Step 2: Convert to fraction form
    18,830.60/25,971.72 = 13,793/x
  3. Step 3: Cross multiply
    18,830.60x = 25,971.72 × 13,793
  4. Step 4: Simplify right side
    18,830.60x = 358,227,933.96
  5. Step 5: Solve for x
    x = 358,227,933.96/18,830.60
  6. Step 6: Final answer
    x = 19,023.71

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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.