Home / 12,153.08-18,227.97-4,762.71

Finding the Fourth Proportional to 12,153.08, 18,227.97 and 4,762.71

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Solution

The fourth proportional to 12,153.08, 18,227.97 and 4,762.71 is: 7,143.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,153.08 : 18,227.97 = 4,762.71 : x
  2. Step 2: Convert to fraction form
    12,153.08/18,227.97 = 4,762.71/x
  3. Step 3: Cross multiply
    12,153.08x = 18,227.97 × 4,762.71
  4. Step 4: Simplify right side
    12,153.08x = 86,814,535.00
  5. Step 5: Solve for x
    x = 86,814,535.00/12,153.08
  6. Step 6: Final answer
    x = 7,143.42

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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.