Home / 12,743.98-19,094.40-7,803.30

Finding the Fourth Proportional to 12,743.98, 19,094.40 and 7,803.30

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Solution

The fourth proportional to 12,743.98, 19,094.40 and 7,803.30 is: 11,691.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,743.98 : 19,094.40 = 7,803.30 : x
  2. Step 2: Convert to fraction form
    12,743.98/19,094.40 = 7,803.30/x
  3. Step 3: Cross multiply
    12,743.98x = 19,094.40 × 7,803.30
  4. Step 4: Simplify right side
    12,743.98x = 148,999,331.52
  5. Step 5: Solve for x
    x = 148,999,331.52/12,743.98
  6. Step 6: Final answer
    x = 11,691.74

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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.