Home / 8,984.98-12,399.40-5,208.36

Finding the Fourth Proportional to 8,984.98, 12,399.40 and 5,208.36

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Solution

The fourth proportional to 8,984.98, 12,399.40 and 5,208.36 is: 7,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,984.98 : 12,399.40 = 5,208.36 : x
  2. Step 2: Convert to fraction form
    8,984.98/12,399.40 = 5,208.36/x
  3. Step 3: Cross multiply
    8,984.98x = 12,399.40 × 5,208.36
  4. Step 4: Simplify right side
    8,984.98x = 64,580,469.70
  5. Step 5: Solve for x
    x = 64,580,469.70/8,984.98
  6. Step 6: Final answer
    x = 7,187.60

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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.