Home / 13,366.01-18,438.60-8,830.47

Finding the Fourth Proportional to 13,366.01, 18,438.60 and 8,830.47

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Solution

The fourth proportional to 13,366.01, 18,438.60 and 8,830.47 is: 12,181.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.01 : 18,438.60 = 8,830.47 : x
  2. Step 2: Convert to fraction form
    13,366.01/18,438.60 = 8,830.47/x
  3. Step 3: Cross multiply
    13,366.01x = 18,438.60 × 8,830.47
  4. Step 4: Simplify right side
    13,366.01x = 162,821,504.14
  5. Step 5: Solve for x
    x = 162,821,504.14/13,366.01
  6. Step 6: Final answer
    x = 12,181.76

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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.