Home / 15,253.84-21,039.44-13,998.94

Finding the Fourth Proportional to 15,253.84, 21,039.44 and 13,998.94

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Solution

The fourth proportional to 15,253.84, 21,039.44 and 13,998.94 is: 19,308.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,253.84 : 21,039.44 = 13,998.94 : x
  2. Step 2: Convert to fraction form
    15,253.84/21,039.44 = 13,998.94/x
  3. Step 3: Cross multiply
    15,253.84x = 21,039.44 × 13,998.94
  4. Step 4: Simplify right side
    15,253.84x = 294,529,858.19
  5. Step 5: Solve for x
    x = 294,529,858.19/15,253.84
  6. Step 6: Final answer
    x = 19,308.58

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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.