Home / 14,301.72-19,729.56-8,636.68

Finding the Fourth Proportional to 14,301.72, 19,729.56 and 8,636.68

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Solution

The fourth proportional to 14,301.72, 19,729.56 and 8,636.68 is: 11,914.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,301.72 : 19,729.56 = 8,636.68 : x
  2. Step 2: Convert to fraction form
    14,301.72/19,729.56 = 8,636.68/x
  3. Step 3: Cross multiply
    14,301.72x = 19,729.56 × 8,636.68
  4. Step 4: Simplify right side
    14,301.72x = 170,397,896.26
  5. Step 5: Solve for x
    x = 170,397,896.26/14,301.72
  6. Step 6: Final answer
    x = 11,914.50

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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.