Home / 12,743.20-19,094.01-7,802.47

Finding the Fourth Proportional to 12,743.20, 19,094.01 and 7,802.47

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Solution

The fourth proportional to 12,743.20, 19,094.01 and 7,802.47 is: 11,690.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,743.20 : 19,094.01 = 7,802.47 : x
  2. Step 2: Convert to fraction form
    12,743.20/19,094.01 = 7,802.47/x
  3. Step 3: Cross multiply
    12,743.20x = 19,094.01 × 7,802.47
  4. Step 4: Simplify right side
    12,743.20x = 148,980,440.20
  5. Step 5: Solve for x
    x = 148,980,440.20/12,743.20
  6. Step 6: Final answer
    x = 11,690.98

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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.