Home / 13,847.84-19,112.21-8,806.81

Finding the Fourth Proportional to 13,847.84, 19,112.21 and 8,806.81

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Solution

The fourth proportional to 13,847.84, 19,112.21 and 8,806.81 is: 12,154.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,847.84 : 19,112.21 = 8,806.81 : x
  2. Step 2: Convert to fraction form
    13,847.84/19,112.21 = 8,806.81/x
  3. Step 3: Cross multiply
    13,847.84x = 19,112.21 × 8,806.81
  4. Step 4: Simplify right side
    13,847.84x = 168,317,602.15
  5. Step 5: Solve for x
    x = 168,317,602.15/13,847.84
  6. Step 6: Final answer
    x = 12,154.79

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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.