Home / 8,172.75-12,243.65-4,830.99

Finding the Fourth Proportional to 8,172.75, 12,243.65 and 4,830.99

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Solution

The fourth proportional to 8,172.75, 12,243.65 and 4,830.99 is: 7,237.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.75 : 12,243.65 = 4,830.99 : x
  2. Step 2: Convert to fraction form
    8,172.75/12,243.65 = 4,830.99/x
  3. Step 3: Cross multiply
    8,172.75x = 12,243.65 × 4,830.99
  4. Step 4: Simplify right side
    8,172.75x = 59,148,950.71
  5. Step 5: Solve for x
    x = 59,148,950.71/8,172.75
  6. Step 6: Final answer
    x = 7,237.34

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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.