Home / 19,615.68-29,420.64-6,468.48

Finding the Fourth Proportional to 19,615.68, 29,420.64 and 6,468.48

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Solution

The fourth proportional to 19,615.68, 29,420.64 and 6,468.48 is: 9,701.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,615.68 : 29,420.64 = 6,468.48 : x
  2. Step 2: Convert to fraction form
    19,615.68/29,420.64 = 6,468.48/x
  3. Step 3: Cross multiply
    19,615.68x = 29,420.64 × 6,468.48
  4. Step 4: Simplify right side
    19,615.68x = 190,306,821.43
  5. Step 5: Solve for x
    x = 190,306,821.43/19,615.68
  6. Step 6: Final answer
    x = 9,701.77

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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.