Home / 12,749.60-19,102.80-8,364.80

Finding the Fourth Proportional to 12,749.60, 19,102.80 and 8,364.80

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Solution

The fourth proportional to 12,749.60, 19,102.80 and 8,364.80 is: 12,533.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,749.60 : 19,102.80 = 8,364.80 : x
  2. Step 2: Convert to fraction form
    12,749.60/19,102.80 = 8,364.80/x
  3. Step 3: Cross multiply
    12,749.60x = 19,102.80 × 8,364.80
  4. Step 4: Simplify right side
    12,749.60x = 159,791,101.44
  5. Step 5: Solve for x
    x = 159,791,101.44/12,749.60
  6. Step 6: Final answer
    x = 12,533.03

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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.