Home / 14,038.68-21,057.26-8,490.54

Finding the Fourth Proportional to 14,038.68, 21,057.26 and 8,490.54

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Solution

The fourth proportional to 14,038.68, 21,057.26 and 8,490.54 is: 12,735.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,038.68 : 21,057.26 = 8,490.54 : x
  2. Step 2: Convert to fraction form
    14,038.68/21,057.26 = 8,490.54/x
  3. Step 3: Cross multiply
    14,038.68x = 21,057.26 × 8,490.54
  4. Step 4: Simplify right side
    14,038.68x = 178,787,465.87
  5. Step 5: Solve for x
    x = 178,787,465.87/14,038.68
  6. Step 6: Final answer
    x = 12,735.35

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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.