Home / 13,644.88-20,458.25-5,325.67

Finding the Fourth Proportional to 13,644.88, 20,458.25 and 5,325.67

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Solution

The fourth proportional to 13,644.88, 20,458.25 and 5,325.67 is: 7,984.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,644.88 : 20,458.25 = 5,325.67 : x
  2. Step 2: Convert to fraction form
    13,644.88/20,458.25 = 5,325.67/x
  3. Step 3: Cross multiply
    13,644.88x = 20,458.25 × 5,325.67
  4. Step 4: Simplify right side
    13,644.88x = 108,953,888.28
  5. Step 5: Solve for x
    x = 108,953,888.28/13,644.88
  6. Step 6: Final answer
    x = 7,984.96

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1.5x scale

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.