Home / 18,929.58-26,121.15-10,969.26

Finding the Fourth Proportional to 18,929.58, 26,121.15 and 10,969.26

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Solution

The fourth proportional to 18,929.58, 26,121.15 and 10,969.26 is: 15,136.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,929.58 : 26,121.15 = 10,969.26 : x
  2. Step 2: Convert to fraction form
    18,929.58/26,121.15 = 10,969.26/x
  3. Step 3: Cross multiply
    18,929.58x = 26,121.15 × 10,969.26
  4. Step 4: Simplify right side
    18,929.58x = 286,529,685.85
  5. Step 5: Solve for x
    x = 286,529,685.85/18,929.58
  6. Step 6: Final answer
    x = 15,136.61

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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.