Home / 8,172.48-12,243.30-4,830.75

Finding the Fourth Proportional to 8,172.48, 12,243.30 and 4,830.75

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Solution

The fourth proportional to 8,172.48, 12,243.30 and 4,830.75 is: 7,237.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.48 : 12,243.30 = 4,830.75 : x
  2. Step 2: Convert to fraction form
    8,172.48/12,243.30 = 4,830.75/x
  3. Step 3: Cross multiply
    8,172.48x = 12,243.30 × 4,830.75
  4. Step 4: Simplify right side
    8,172.48x = 59,144,321.48
  5. Step 5: Solve for x
    x = 59,144,321.48/8,172.48
  6. Step 6: Final answer
    x = 7,237.01

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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.