Home / 12,835.78-19,237.77-7,272.26

Finding the Fourth Proportional to 12,835.78, 19,237.77 and 7,272.26

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Solution

The fourth proportional to 12,835.78, 19,237.77 and 7,272.26 is: 10,899.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,835.78 : 19,237.77 = 7,272.26 : x
  2. Step 2: Convert to fraction form
    12,835.78/19,237.77 = 7,272.26/x
  3. Step 3: Cross multiply
    12,835.78x = 19,237.77 × 7,272.26
  4. Step 4: Simplify right side
    12,835.78x = 139,902,041.21
  5. Step 5: Solve for x
    x = 139,902,041.21/12,835.78
  6. Step 6: Final answer
    x = 10,899.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.