Home / 12,984.60-19,477.36-4,219.59

Finding the Fourth Proportional to 12,984.60, 19,477.36 and 4,219.59

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Solution

The fourth proportional to 12,984.60, 19,477.36 and 4,219.59 is: 6,329.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,984.60 : 19,477.36 = 4,219.59 : x
  2. Step 2: Convert to fraction form
    12,984.60/19,477.36 = 4,219.59/x
  3. Step 3: Cross multiply
    12,984.60x = 19,477.36 × 4,219.59
  4. Step 4: Simplify right side
    12,984.60x = 82,186,551.80
  5. Step 5: Solve for x
    x = 82,186,551.80/12,984.60
  6. Step 6: Final answer
    x = 6,329.54

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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.