Home / 15,435.36-23,132.70-8,418.42

Finding the Fourth Proportional to 15,435.36, 23,132.70 and 8,418.42

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Solution

The fourth proportional to 15,435.36, 23,132.70 and 8,418.42 is: 12,616.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,435.36 : 23,132.70 = 8,418.42 : x
  2. Step 2: Convert to fraction form
    15,435.36/23,132.70 = 8,418.42/x
  3. Step 3: Cross multiply
    15,435.36x = 23,132.70 × 8,418.42
  4. Step 4: Simplify right side
    15,435.36x = 194,740,784.33
  5. Step 5: Solve for x
    x = 194,740,784.33/15,435.36
  6. Step 6: Final answer
    x = 12,616.54

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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.