Home / 15,445.99-21,314.90-8,372.26

Finding the Fourth Proportional to 15,445.99, 21,314.90 and 8,372.26

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Solution

The fourth proportional to 15,445.99, 21,314.90 and 8,372.26 is: 11,553.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,445.99 : 21,314.90 = 8,372.26 : x
  2. Step 2: Convert to fraction form
    15,445.99/21,314.90 = 8,372.26/x
  3. Step 3: Cross multiply
    15,445.99x = 21,314.90 × 8,372.26
  4. Step 4: Simplify right side
    15,445.99x = 178,453,885.15
  5. Step 5: Solve for x
    x = 178,453,885.15/15,445.99
  6. Step 6: Final answer
    x = 11,553.41

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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.