Home / 18,929.32-26,120.91-10,865.44

Finding the Fourth Proportional to 18,929.32, 26,120.91 and 10,865.44

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Solution

The fourth proportional to 18,929.32, 26,120.91 and 10,865.44 is: 14,993.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,929.32 : 26,120.91 = 10,865.44 : x
  2. Step 2: Convert to fraction form
    18,929.32/26,120.91 = 10,865.44/x
  3. Step 3: Cross multiply
    18,929.32x = 26,120.91 × 10,865.44
  4. Step 4: Simplify right side
    18,929.32x = 283,815,162.07
  5. Step 5: Solve for x
    x = 283,815,162.07/18,929.32
  6. Step 6: Final answer
    x = 14,993.42

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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.