Home / 12,984.98-17,917.98-7,319.60

Finding the Fourth Proportional to 12,984.98, 17,917.98 and 7,319.60

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Solution

The fourth proportional to 12,984.98, 17,917.98 and 7,319.60 is: 10,100.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,984.98 : 17,917.98 = 7,319.60 : x
  2. Step 2: Convert to fraction form
    12,984.98/17,917.98 = 7,319.60/x
  3. Step 3: Cross multiply
    12,984.98x = 17,917.98 × 7,319.60
  4. Step 4: Simplify right side
    12,984.98x = 131,152,446.41
  5. Step 5: Solve for x
    x = 131,152,446.41/12,984.98
  6. Step 6: Final answer
    x = 10,100.32

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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.