Home / 14,168.40-21,252.15-3,638.00

Finding the Fourth Proportional to 14,168.40, 21,252.15 and 3,638.00

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Solution

The fourth proportional to 14,168.40, 21,252.15 and 3,638.00 is: 5,456.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,168.40 : 21,252.15 = 3,638.00 : x
  2. Step 2: Convert to fraction form
    14,168.40/21,252.15 = 3,638.00/x
  3. Step 3: Cross multiply
    14,168.40x = 21,252.15 × 3,638.00
  4. Step 4: Simplify right side
    14,168.40x = 77,315,215.44
  5. Step 5: Solve for x
    x = 77,315,215.44/14,168.40
  6. Step 6: Final answer
    x = 5,456.88

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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.