Home / 9,103.24-13,655.34-5,211.40

Finding the Fourth Proportional to 9,103.24, 13,655.34 and 5,211.40

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Solution

The fourth proportional to 9,103.24, 13,655.34 and 5,211.40 is: 7,817.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,103.24 : 13,655.34 = 5,211.40 : x
  2. Step 2: Convert to fraction form
    9,103.24/13,655.34 = 5,211.40/x
  3. Step 3: Cross multiply
    9,103.24x = 13,655.34 × 5,211.40
  4. Step 4: Simplify right side
    9,103.24x = 71,163,438.88
  5. Step 5: Solve for x
    x = 71,163,438.88/9,103.24
  6. Step 6: Final answer
    x = 7,817.37

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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.