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Finding the Fourth Proportional to 14,293.78, 21,445.08 and 6,402.94

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Solution

The fourth proportional to 14,293.78, 21,445.08 and 6,402.94 is: 9,606.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,293.78 : 21,445.08 = 6,402.94 : x
  2. Step 2: Convert to fraction form
    14,293.78/21,445.08 = 6,402.94/x
  3. Step 3: Cross multiply
    14,293.78x = 21,445.08 × 6,402.94
  4. Step 4: Simplify right side
    14,293.78x = 137,311,560.54
  5. Step 5: Solve for x
    x = 137,311,560.54/14,293.78
  6. Step 6: Final answer
    x = 9,606.39

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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.