Home / 19,874.37-29,789.36-8,616.72

Finding the Fourth Proportional to 19,874.37, 29,789.36 and 8,616.72

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Solution

The fourth proportional to 19,874.37, 29,789.36 and 8,616.72 is: 12,915.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,874.37 : 29,789.36 = 8,616.72 : x
  2. Step 2: Convert to fraction form
    19,874.37/29,789.36 = 8,616.72/x
  3. Step 3: Cross multiply
    19,874.37x = 29,789.36 × 8,616.72
  4. Step 4: Simplify right side
    19,874.37x = 256,686,531.02
  5. Step 5: Solve for x
    x = 256,686,531.02/19,874.37
  6. Step 6: Final answer
    x = 12,915.45

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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.