Home / 14,955.09-20,636.74-8,239.07

Finding the Fourth Proportional to 14,955.09, 20,636.74 and 8,239.07

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Solution

The fourth proportional to 14,955.09, 20,636.74 and 8,239.07 is: 11,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,955.09 : 20,636.74 = 8,239.07 : x
  2. Step 2: Convert to fraction form
    14,955.09/20,636.74 = 8,239.07/x
  3. Step 3: Cross multiply
    14,955.09x = 20,636.74 × 8,239.07
  4. Step 4: Simplify right side
    14,955.09x = 170,027,456.48
  5. Step 5: Solve for x
    x = 170,027,456.48/14,955.09
  6. Step 6: Final answer
    x = 11,369.20

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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.