Home / 13,880.38-19,138.17-9,635.05

Finding the Fourth Proportional to 13,880.38, 19,138.17 and 9,635.05

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Solution

The fourth proportional to 13,880.38, 19,138.17 and 9,635.05 is: 13,284.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,880.38 : 19,138.17 = 9,635.05 : x
  2. Step 2: Convert to fraction form
    13,880.38/19,138.17 = 9,635.05/x
  3. Step 3: Cross multiply
    13,880.38x = 19,138.17 × 9,635.05
  4. Step 4: Simplify right side
    13,880.38x = 184,397,224.86
  5. Step 5: Solve for x
    x = 184,397,224.86/13,880.38
  6. Step 6: Final answer
    x = 13,284.74

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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.