Home / 15,863.70-21,893.34-9,150.42

Finding the Fourth Proportional to 15,863.70, 21,893.34 and 9,150.42

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Solution

The fourth proportional to 15,863.70, 21,893.34 and 9,150.42 is: 12,628.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,863.70 : 21,893.34 = 9,150.42 : x
  2. Step 2: Convert to fraction form
    15,863.70/21,893.34 = 9,150.42/x
  3. Step 3: Cross multiply
    15,863.70x = 21,893.34 × 9,150.42
  4. Step 4: Simplify right side
    15,863.70x = 200,333,256.20
  5. Step 5: Solve for x
    x = 200,333,256.20/15,863.70
  6. Step 6: Final answer
    x = 12,628.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.