Home / 13,529.67-18,636.24-9,543.79

Finding the Fourth Proportional to 13,529.67, 18,636.24 and 9,543.79

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Solution

The fourth proportional to 13,529.67, 18,636.24 and 9,543.79 is: 13,145.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,529.67 : 18,636.24 = 9,543.79 : x
  2. Step 2: Convert to fraction form
    13,529.67/18,636.24 = 9,543.79/x
  3. Step 3: Cross multiply
    13,529.67x = 18,636.24 × 9,543.79
  4. Step 4: Simplify right side
    13,529.67x = 177,860,360.95
  5. Step 5: Solve for x
    x = 177,860,360.95/13,529.67
  6. Step 6: Final answer
    x = 13,145.95

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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.