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Finding the Fourth Proportional to 12,995.28, 19,495.80 and 3,762

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Solution

The fourth proportional to 12,995.28, 19,495.80 and 3,762 is: 5,643.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,995.28 : 19,495.80 = 3,762 : x
  2. Step 2: Convert to fraction form
    12,995.28/19,495.80 = 3,762/x
  3. Step 3: Cross multiply
    12,995.28x = 19,495.80 × 3,762
  4. Step 4: Simplify right side
    12,995.28x = 73,343,199.60
  5. Step 5: Solve for x
    x = 73,343,199.60/12,995.28
  6. Step 6: Final answer
    x = 5,643.83

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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.