Home / 15,442.98-21,310.74-8,369.25

Finding the Fourth Proportional to 15,442.98, 21,310.74 and 8,369.25

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Solution

The fourth proportional to 15,442.98, 21,310.74 and 8,369.25 is: 11,549.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,442.98 : 21,310.74 = 8,369.25 : x
  2. Step 2: Convert to fraction form
    15,442.98/21,310.74 = 8,369.25/x
  3. Step 3: Cross multiply
    15,442.98x = 21,310.74 × 8,369.25
  4. Step 4: Simplify right side
    15,442.98x = 178,354,762.35
  5. Step 5: Solve for x
    x = 178,354,762.35/15,442.98
  6. Step 6: Final answer
    x = 11,549.25

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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.