Home / 18,940.22-26,136.47-10,440.65

Finding the Fourth Proportional to 18,940.22, 26,136.47 and 10,440.65

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Solution

The fourth proportional to 18,940.22, 26,136.47 and 10,440.65 is: 14,407.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,940.22 : 26,136.47 = 10,440.65 : x
  2. Step 2: Convert to fraction form
    18,940.22/26,136.47 = 10,440.65/x
  3. Step 3: Cross multiply
    18,940.22x = 26,136.47 × 10,440.65
  4. Step 4: Simplify right side
    18,940.22x = 272,881,735.51
  5. Step 5: Solve for x
    x = 272,881,735.51/18,940.22
  6. Step 6: Final answer
    x = 14,407.53

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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.