Home / 8,984.12-13,467.64-3,139.16

Finding the Fourth Proportional to 8,984.12, 13,467.64 and 3,139.16

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Solution

The fourth proportional to 8,984.12, 13,467.64 and 3,139.16 is: 4,705.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,984.12 : 13,467.64 = 3,139.16 : x
  2. Step 2: Convert to fraction form
    8,984.12/13,467.64 = 3,139.16/x
  3. Step 3: Cross multiply
    8,984.12x = 13,467.64 × 3,139.16
  4. Step 4: Simplify right side
    8,984.12x = 42,277,076.78
  5. Step 5: Solve for x
    x = 42,277,076.78/8,984.12
  6. Step 6: Final answer
    x = 4,705.76

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1.5x scale

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.