Home / 13,669.35-20,490.04-4,782.03

Finding the Fourth Proportional to 13,669.35, 20,490.04 and 4,782.03

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Solution

The fourth proportional to 13,669.35, 20,490.04 and 4,782.03 is: 7,168.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.35 : 20,490.04 = 4,782.03 : x
  2. Step 2: Convert to fraction form
    13,669.35/20,490.04 = 4,782.03/x
  3. Step 3: Cross multiply
    13,669.35x = 20,490.04 × 4,782.03
  4. Step 4: Simplify right side
    13,669.35x = 97,983,985.98
  5. Step 5: Solve for x
    x = 97,983,985.98/13,669.35
  6. Step 6: Final answer
    x = 7,168.15

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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.