Home / 19,469.24-26,869.65-11,920.64

Finding the Fourth Proportional to 19,469.24, 26,869.65 and 11,920.64

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Solution

The fourth proportional to 19,469.24, 26,869.65 and 11,920.64 is: 16,451.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,469.24 : 26,869.65 = 11,920.64 : x
  2. Step 2: Convert to fraction form
    19,469.24/26,869.65 = 11,920.64/x
  3. Step 3: Cross multiply
    19,469.24x = 26,869.65 × 11,920.64
  4. Step 4: Simplify right side
    19,469.24x = 320,303,424.58
  5. Step 5: Solve for x
    x = 320,303,424.58/19,469.24
  6. Step 6: Final answer
    x = 16,451.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.