Home / 12,721.56-19,075.02-10,654.44

Finding the Fourth Proportional to 12,721.56, 19,075.02 and 10,654.44

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Solution

The fourth proportional to 12,721.56, 19,075.02 and 10,654.44 is: 15,975.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,721.56 : 19,075.02 = 10,654.44 : x
  2. Step 2: Convert to fraction form
    12,721.56/19,075.02 = 10,654.44/x
  3. Step 3: Cross multiply
    12,721.56x = 19,075.02 × 10,654.44
  4. Step 4: Simplify right side
    12,721.56x = 203,233,656.09
  5. Step 5: Solve for x
    x = 203,233,656.09/12,721.56
  6. Step 6: Final answer
    x = 15,975.53

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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.