Home / 19,688.78-29,537.50-6,540.60

Finding the Fourth Proportional to 19,688.78, 29,537.50 and 6,540.60

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Solution

The fourth proportional to 19,688.78, 29,537.50 and 6,540.60 is: 9,812.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,688.78 : 29,537.50 = 6,540.60 : x
  2. Step 2: Convert to fraction form
    19,688.78/29,537.50 = 6,540.60/x
  3. Step 3: Cross multiply
    19,688.78x = 29,537.50 × 6,540.60
  4. Step 4: Simplify right side
    19,688.78x = 193,192,972.50
  5. Step 5: Solve for x
    x = 193,192,972.50/19,688.78
  6. Step 6: Final answer
    x = 9,812.34

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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.