Home / 18,905.63-28,362.67-5,759.03

Finding the Fourth Proportional to 18,905.63, 28,362.67 and 5,759.03

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Solution

The fourth proportional to 18,905.63, 28,362.67 and 5,759.03 is: 8,639.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,905.63 : 28,362.67 = 5,759.03 : x
  2. Step 2: Convert to fraction form
    18,905.63/28,362.67 = 5,759.03/x
  3. Step 3: Cross multiply
    18,905.63x = 28,362.67 × 5,759.03
  4. Step 4: Simplify right side
    18,905.63x = 163,341,523.92
  5. Step 5: Solve for x
    x = 163,341,523.92/18,905.63
  6. Step 6: Final answer
    x = 8,639.84

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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.