Home / 13,902.60-19,191.78-8,873.46

Finding the Fourth Proportional to 13,902.60, 19,191.78 and 8,873.46

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Solution

The fourth proportional to 13,902.60, 19,191.78 and 8,873.46 is: 12,249.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902.60 : 19,191.78 = 8,873.46 : x
  2. Step 2: Convert to fraction form
    13,902.60/19,191.78 = 8,873.46/x
  3. Step 3: Cross multiply
    13,902.60x = 19,191.78 × 8,873.46
  4. Step 4: Simplify right side
    13,902.60x = 170,297,492.16
  5. Step 5: Solve for x
    x = 170,297,492.16/13,902.60
  6. Step 6: Final answer
    x = 12,249.33

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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.