Home / 12,323.79-18,488.40-4,004.69

Finding the Fourth Proportional to 12,323.79, 18,488.40 and 4,004.69

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Solution

The fourth proportional to 12,323.79, 18,488.40 and 4,004.69 is: 6,007.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,323.79 : 18,488.40 = 4,004.69 : x
  2. Step 2: Convert to fraction form
    12,323.79/18,488.40 = 4,004.69/x
  3. Step 3: Cross multiply
    12,323.79x = 18,488.40 × 4,004.69
  4. Step 4: Simplify right side
    12,323.79x = 74,040,272.47
  5. Step 5: Solve for x
    x = 74,040,272.47/12,323.79
  6. Step 6: Final answer
    x = 6,007.91

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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.