Home / 13,788.79-20,682.10-5,025.67

Finding the Fourth Proportional to 13,788.79, 20,682.10 and 5,025.67

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Solution

The fourth proportional to 13,788.79, 20,682.10 and 5,025.67 is: 7,538.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.79 : 20,682.10 = 5,025.67 : x
  2. Step 2: Convert to fraction form
    13,788.79/20,682.10 = 5,025.67/x
  3. Step 3: Cross multiply
    13,788.79x = 20,682.10 × 5,025.67
  4. Step 4: Simplify right side
    13,788.79x = 103,941,409.51
  5. Step 5: Solve for x
    x = 103,941,409.51/13,788.79
  6. Step 6: Final answer
    x = 7,538.11

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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.