Home / 8,861.56-12,230.73-5,087.28

Finding the Fourth Proportional to 8,861.56, 12,230.73 and 5,087.28

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Solution

The fourth proportional to 8,861.56, 12,230.73 and 5,087.28 is: 7,021.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.56 : 12,230.73 = 5,087.28 : x
  2. Step 2: Convert to fraction form
    8,861.56/12,230.73 = 5,087.28/x
  3. Step 3: Cross multiply
    8,861.56x = 12,230.73 × 5,087.28
  4. Step 4: Simplify right side
    8,861.56x = 62,221,148.11
  5. Step 5: Solve for x
    x = 62,221,148.11/8,861.56
  6. Step 6: Final answer
    x = 7,021.47

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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.