Home / 13,403.08-18,484.14-8,367.76

Finding the Fourth Proportional to 13,403.08, 18,484.14 and 8,367.76

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Solution

The fourth proportional to 13,403.08, 18,484.14 and 8,367.76 is: 11,539.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.08 : 18,484.14 = 8,367.76 : x
  2. Step 2: Convert to fraction form
    13,403.08/18,484.14 = 8,367.76/x
  3. Step 3: Cross multiply
    13,403.08x = 18,484.14 × 8,367.76
  4. Step 4: Simplify right side
    13,403.08x = 154,670,847.33
  5. Step 5: Solve for x
    x = 154,670,847.33/13,403.08
  6. Step 6: Final answer
    x = 11,539.95

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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.