Home / 8,451.54-11,664-4,915.89

Finding the Fourth Proportional to 8,451.54, 11,664 and 4,915.89

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Solution

The fourth proportional to 8,451.54, 11,664 and 4,915.89 is: 6,784.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,451.54 : 11,664 = 4,915.89 : x
  2. Step 2: Convert to fraction form
    8,451.54/11,664 = 4,915.89/x
  3. Step 3: Cross multiply
    8,451.54x = 11,664 × 4,915.89
  4. Step 4: Simplify right side
    8,451.54x = 57,338,940.96
  5. Step 5: Solve for x
    x = 57,338,940.96/8,451.54
  6. Step 6: Final answer
    x = 6,784.44

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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.