Home / 13,125.51-19,688.90-3,764.57

Finding the Fourth Proportional to 13,125.51, 19,688.90 and 3,764.57

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Solution

The fourth proportional to 13,125.51, 19,688.90 and 3,764.57 is: 5,647.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125.51 : 19,688.90 = 3,764.57 : x
  2. Step 2: Convert to fraction form
    13,125.51/19,688.90 = 3,764.57/x
  3. Step 3: Cross multiply
    13,125.51x = 19,688.90 × 3,764.57
  4. Step 4: Simplify right side
    13,125.51x = 74,120,125.01
  5. Step 5: Solve for x
    x = 74,120,125.01/13,125.51
  6. Step 6: Final answer
    x = 5,647.03

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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.