Home / 13,809.16-20,702.49-6,418.27

Finding the Fourth Proportional to 13,809.16, 20,702.49 and 6,418.27

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Solution

The fourth proportional to 13,809.16, 20,702.49 and 6,418.27 is: 9,622.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809.16 : 20,702.49 = 6,418.27 : x
  2. Step 2: Convert to fraction form
    13,809.16/20,702.49 = 6,418.27/x
  3. Step 3: Cross multiply
    13,809.16x = 20,702.49 × 6,418.27
  4. Step 4: Simplify right side
    13,809.16x = 132,874,170.49
  5. Step 5: Solve for x
    x = 132,874,170.49/13,809.16
  6. Step 6: Final answer
    x = 9,622.18

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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.