Home / 13,356.33-18,428.63-8,051.37

Finding the Fourth Proportional to 13,356.33, 18,428.63 and 8,051.37

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Solution

The fourth proportional to 13,356.33, 18,428.63 and 8,051.37 is: 11,109.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,356.33 : 18,428.63 = 8,051.37 : x
  2. Step 2: Convert to fraction form
    13,356.33/18,428.63 = 8,051.37/x
  3. Step 3: Cross multiply
    13,356.33x = 18,428.63 × 8,051.37
  4. Step 4: Simplify right side
    13,356.33x = 148,375,678.47
  5. Step 5: Solve for x
    x = 148,375,678.47/13,356.33
  6. Step 6: Final answer
    x = 11,109.02

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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.