Home / 12,555.21-18,832.80-4,764.01

Finding the Fourth Proportional to 12,555.21, 18,832.80 and 4,764.01

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Solution

The fourth proportional to 12,555.21, 18,832.80 and 4,764.01 is: 7,146.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,555.21 : 18,832.80 = 4,764.01 : x
  2. Step 2: Convert to fraction form
    12,555.21/18,832.80 = 4,764.01/x
  3. Step 3: Cross multiply
    12,555.21x = 18,832.80 × 4,764.01
  4. Step 4: Simplify right side
    12,555.21x = 89,719,647.53
  5. Step 5: Solve for x
    x = 89,719,647.53/12,555.21
  6. Step 6: Final answer
    x = 7,146.01

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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.