Home / 14,285.57-21,442.32-7,725.78

Finding the Fourth Proportional to 14,285.57, 21,442.32 and 7,725.78

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Solution

The fourth proportional to 14,285.57, 21,442.32 and 7,725.78 is: 11,596.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,285.57 : 21,442.32 = 7,725.78 : x
  2. Step 2: Convert to fraction form
    14,285.57/21,442.32 = 7,725.78/x
  3. Step 3: Cross multiply
    14,285.57x = 21,442.32 × 7,725.78
  4. Step 4: Simplify right side
    14,285.57x = 165,658,647.01
  5. Step 5: Solve for x
    x = 165,658,647.01/14,285.57
  6. Step 6: Final answer
    x = 11,596.23

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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.