Home / 15,255.06-21,054.70-11,075.46

Finding the Fourth Proportional to 15,255.06, 21,054.70 and 11,075.46

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Solution

The fourth proportional to 15,255.06, 21,054.70 and 11,075.46 is: 15,286.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,255.06 : 21,054.70 = 11,075.46 : x
  2. Step 2: Convert to fraction form
    15,255.06/21,054.70 = 11,075.46/x
  3. Step 3: Cross multiply
    15,255.06x = 21,054.70 × 11,075.46
  4. Step 4: Simplify right side
    15,255.06x = 233,190,487.66
  5. Step 5: Solve for x
    x = 233,190,487.66/15,255.06
  6. Step 6: Final answer
    x = 15,286.11

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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.