Home / 15,442.26-21,310.32-8,368.68

Finding the Fourth Proportional to 15,442.26, 21,310.32 and 8,368.68

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Solution

The fourth proportional to 15,442.26, 21,310.32 and 8,368.68 is: 11,548.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,442.26 : 21,310.32 = 8,368.68 : x
  2. Step 2: Convert to fraction form
    15,442.26/21,310.32 = 8,368.68/x
  3. Step 3: Cross multiply
    15,442.26x = 21,310.32 × 8,368.68
  4. Step 4: Simplify right side
    15,442.26x = 178,339,248.78
  5. Step 5: Solve for x
    x = 178,339,248.78/15,442.26
  6. Step 6: Final answer
    x = 11,548.78

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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.