Home / 13,506.52-18,638.84-7,539.66

Finding the Fourth Proportional to 13,506.52, 18,638.84 and 7,539.66

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Solution

The fourth proportional to 13,506.52, 18,638.84 and 7,539.66 is: 10,404.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,506.52 : 18,638.84 = 7,539.66 : x
  2. Step 2: Convert to fraction form
    13,506.52/18,638.84 = 7,539.66/x
  3. Step 3: Cross multiply
    13,506.52x = 18,638.84 × 7,539.66
  4. Step 4: Simplify right side
    13,506.52x = 140,530,516.39
  5. Step 5: Solve for x
    x = 140,530,516.39/13,506.52
  6. Step 6: Final answer
    x = 10,404.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.