Home / 13,845.42-19,106.69-8,543.32

Finding the Fourth Proportional to 13,845.42, 19,106.69 and 8,543.32

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Solution

The fourth proportional to 13,845.42, 19,106.69 and 8,543.32 is: 11,789.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.42 : 19,106.69 = 8,543.32 : x
  2. Step 2: Convert to fraction form
    13,845.42/19,106.69 = 8,543.32/x
  3. Step 3: Cross multiply
    13,845.42x = 19,106.69 × 8,543.32
  4. Step 4: Simplify right side
    13,845.42x = 163,234,540.40
  5. Step 5: Solve for x
    x = 163,234,540.40/13,845.42
  6. Step 6: Final answer
    x = 11,789.79

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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.