Home / 12,378.56-18,559.36-4,583.20

Finding the Fourth Proportional to 12,378.56, 18,559.36 and 4,583.20

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Solution

The fourth proportional to 12,378.56, 18,559.36 and 4,583.20 is: 6,871.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,378.56 : 18,559.36 = 4,583.20 : x
  2. Step 2: Convert to fraction form
    12,378.56/18,559.36 = 4,583.20/x
  3. Step 3: Cross multiply
    12,378.56x = 18,559.36 × 4,583.20
  4. Step 4: Simplify right side
    12,378.56x = 85,061,258.75
  5. Step 5: Solve for x
    x = 85,061,258.75/12,378.56
  6. Step 6: Final answer
    x = 6,871.66

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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.