Home / 8,912.63-12,299.45-5,774.29

Finding the Fourth Proportional to 8,912.63, 12,299.45 and 5,774.29

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Solution

The fourth proportional to 8,912.63, 12,299.45 and 5,774.29 is: 7,968.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.63 : 12,299.45 = 5,774.29 : x
  2. Step 2: Convert to fraction form
    8,912.63/12,299.45 = 5,774.29/x
  3. Step 3: Cross multiply
    8,912.63x = 12,299.45 × 5,774.29
  4. Step 4: Simplify right side
    8,912.63x = 71,020,531.52
  5. Step 5: Solve for x
    x = 71,020,531.52/8,912.63
  6. Step 6: Final answer
    x = 7,968.52

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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.