Home / 18,940.57-26,136.95-10,442.68

Finding the Fourth Proportional to 18,940.57, 26,136.95 and 10,442.68

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Solution

The fourth proportional to 18,940.57, 26,136.95 and 10,442.68 is: 14,410.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,940.57 : 26,136.95 = 10,442.68 : x
  2. Step 2: Convert to fraction form
    18,940.57/26,136.95 = 10,442.68/x
  3. Step 3: Cross multiply
    18,940.57x = 26,136.95 × 10,442.68
  4. Step 4: Simplify right side
    18,940.57x = 272,939,687.47
  5. Step 5: Solve for x
    x = 272,939,687.47/18,940.57
  6. Step 6: Final answer
    x = 14,410.32

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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.