Home / 13,678.63-20,517.96-9,019.44

Finding the Fourth Proportional to 13,678.63, 20,517.96 and 9,019.44

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Solution

The fourth proportional to 13,678.63, 20,517.96 and 9,019.44 is: 13,529.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,678.63 : 20,517.96 = 9,019.44 : x
  2. Step 2: Convert to fraction form
    13,678.63/20,517.96 = 9,019.44/x
  3. Step 3: Cross multiply
    13,678.63x = 20,517.96 × 9,019.44
  4. Step 4: Simplify right side
    13,678.63x = 185,060,509.14
  5. Step 5: Solve for x
    x = 185,060,509.14/13,678.63
  6. Step 6: Final answer
    x = 13,529.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.