Home / 14,385.12-21,579.80-7,369.10

Finding the Fourth Proportional to 14,385.12, 21,579.80 and 7,369.10

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Solution

The fourth proportional to 14,385.12, 21,579.80 and 7,369.10 is: 11,054.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,385.12 : 21,579.80 = 7,369.10 : x
  2. Step 2: Convert to fraction form
    14,385.12/21,579.80 = 7,369.10/x
  3. Step 3: Cross multiply
    14,385.12x = 21,579.80 × 7,369.10
  4. Step 4: Simplify right side
    14,385.12x = 159,023,559.44
  5. Step 5: Solve for x
    x = 159,023,559.44/14,385.12
  6. Step 6: Final answer
    x = 11,054.73

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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.