Home / 10,586.55-15,878.36-7,414.38

Finding the Fourth Proportional to 10,586.55, 15,878.36 and 7,414.38

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Solution

The fourth proportional to 10,586.55, 15,878.36 and 7,414.38 is: 11,120.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,586.55 : 15,878.36 = 7,414.38 : x
  2. Step 2: Convert to fraction form
    10,586.55/15,878.36 = 7,414.38/x
  3. Step 3: Cross multiply
    10,586.55x = 15,878.36 × 7,414.38
  4. Step 4: Simplify right side
    10,586.55x = 117,728,157.74
  5. Step 5: Solve for x
    x = 117,728,157.74/10,586.55
  6. Step 6: Final answer
    x = 11,120.54

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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.