Home / 12,721.56-19,090.62-9,608.76

Finding the Fourth Proportional to 12,721.56, 19,090.62 and 9,608.76

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Solution

The fourth proportional to 12,721.56, 19,090.62 and 9,608.76 is: 14,419.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,721.56 : 19,090.62 = 9,608.76 : x
  2. Step 2: Convert to fraction form
    12,721.56/19,090.62 = 9,608.76/x
  3. Step 3: Cross multiply
    12,721.56x = 19,090.62 × 9,608.76
  4. Step 4: Simplify right side
    12,721.56x = 183,437,185.83
  5. Step 5: Solve for x
    x = 183,437,185.83/12,721.56
  6. Step 6: Final answer
    x = 14,419.39

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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.