Home / 13,280.96-18,325.22-8,246.40

Finding the Fourth Proportional to 13,280.96, 18,325.22 and 8,246.40

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Solution

The fourth proportional to 13,280.96, 18,325.22 and 8,246.40 is: 11,378.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.96 : 18,325.22 = 8,246.40 : x
  2. Step 2: Convert to fraction form
    13,280.96/18,325.22 = 8,246.40/x
  3. Step 3: Cross multiply
    13,280.96x = 18,325.22 × 8,246.40
  4. Step 4: Simplify right side
    13,280.96x = 151,117,052.98
  5. Step 5: Solve for x
    x = 151,117,052.98/13,280.96
  6. Step 6: Final answer
    x = 11,378.48

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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.