Home / 13,853.26-19,117.48-8,190.05

Finding the Fourth Proportional to 13,853.26, 19,117.48 and 8,190.05

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Solution

The fourth proportional to 13,853.26, 19,117.48 and 8,190.05 is: 11,302.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,853.26 : 19,117.48 = 8,190.05 : x
  2. Step 2: Convert to fraction form
    13,853.26/19,117.48 = 8,190.05/x
  3. Step 3: Cross multiply
    13,853.26x = 19,117.48 × 8,190.05
  4. Step 4: Simplify right side
    13,853.26x = 156,573,117.07
  5. Step 5: Solve for x
    x = 156,573,117.07/13,853.26
  6. Step 6: Final answer
    x = 11,302.26

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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.