Home / 8,455.67-11,665.98-4,915.97

Finding the Fourth Proportional to 8,455.67, 11,665.98 and 4,915.97

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Solution

The fourth proportional to 8,455.67, 11,665.98 and 4,915.97 is: 6,782.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.67 : 11,665.98 = 4,915.97 : x
  2. Step 2: Convert to fraction form
    8,455.67/11,665.98 = 4,915.97/x
  3. Step 3: Cross multiply
    8,455.67x = 11,665.98 × 4,915.97
  4. Step 4: Simplify right side
    8,455.67x = 57,349,607.70
  5. Step 5: Solve for x
    x = 57,349,607.70/8,455.67
  6. Step 6: Final answer
    x = 6,782.38

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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.