Home / 13,706.40-20,559.54-3,318.18

Finding the Fourth Proportional to 13,706.40, 20,559.54 and 3,318.18

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Solution

The fourth proportional to 13,706.40, 20,559.54 and 3,318.18 is: 4,977.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,706.40 : 20,559.54 = 3,318.18 : x
  2. Step 2: Convert to fraction form
    13,706.40/20,559.54 = 3,318.18/x
  3. Step 3: Cross multiply
    13,706.40x = 20,559.54 × 3,318.18
  4. Step 4: Simplify right side
    13,706.40x = 68,220,254.44
  5. Step 5: Solve for x
    x = 68,220,254.44/13,706.40
  6. Step 6: Final answer
    x = 4,977.26

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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.