Home / 8,619.15-11,895.98-5,082.15

Finding the Fourth Proportional to 8,619.15, 11,895.98 and 5,082.15

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Solution

The fourth proportional to 8,619.15, 11,895.98 and 5,082.15 is: 7,014.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.15 : 11,895.98 = 5,082.15 : x
  2. Step 2: Convert to fraction form
    8,619.15/11,895.98 = 5,082.15/x
  3. Step 3: Cross multiply
    8,619.15x = 11,895.98 × 5,082.15
  4. Step 4: Simplify right side
    8,619.15x = 60,457,129.35
  5. Step 5: Solve for x
    x = 60,457,129.35/8,619.15
  6. Step 6: Final answer
    x = 7,014.28

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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.