Home / 12,310.03-18,465.08-4,915.09

Finding the Fourth Proportional to 12,310.03, 18,465.08 and 4,915.09

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Solution

The fourth proportional to 12,310.03, 18,465.08 and 4,915.09 is: 7,372.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,310.03 : 18,465.08 = 4,915.09 : x
  2. Step 2: Convert to fraction form
    12,310.03/18,465.08 = 4,915.09/x
  3. Step 3: Cross multiply
    12,310.03x = 18,465.08 × 4,915.09
  4. Step 4: Simplify right side
    12,310.03x = 90,757,505.48
  5. Step 5: Solve for x
    x = 90,757,505.48/12,310.03
  6. Step 6: Final answer
    x = 7,372.65

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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.