Home / 13,637.26-18,814.78-7,667.66

Finding the Fourth Proportional to 13,637.26, 18,814.78 and 7,667.66

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Solution

The fourth proportional to 13,637.26, 18,814.78 and 7,667.66 is: 10,578.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637.26 : 18,814.78 = 7,667.66 : x
  2. Step 2: Convert to fraction form
    13,637.26/18,814.78 = 7,667.66/x
  3. Step 3: Cross multiply
    13,637.26x = 18,814.78 × 7,667.66
  4. Step 4: Simplify right side
    13,637.26x = 144,265,392.64
  5. Step 5: Solve for x
    x = 144,265,392.64/13,637.26
  6. Step 6: Final answer
    x = 10,578.77

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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.