Home / 13,759.06-20,638.68-3,370.81

Finding the Fourth Proportional to 13,759.06, 20,638.68 and 3,370.81

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Solution

The fourth proportional to 13,759.06, 20,638.68 and 3,370.81 is: 5,056.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,759.06 : 20,638.68 = 3,370.81 : x
  2. Step 2: Convert to fraction form
    13,759.06/20,638.68 = 3,370.81/x
  3. Step 3: Cross multiply
    13,759.06x = 20,638.68 × 3,370.81
  4. Step 4: Simplify right side
    13,759.06x = 69,569,068.93
  5. Step 5: Solve for x
    x = 69,569,068.93/13,759.06
  6. Step 6: Final answer
    x = 5,056.24

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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.