Home / 15,074.09-20,802.29-8,360.33

Finding the Fourth Proportional to 15,074.09, 20,802.29 and 8,360.33

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Solution

The fourth proportional to 15,074.09, 20,802.29 and 8,360.33 is: 11,537.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,074.09 : 20,802.29 = 8,360.33 : x
  2. Step 2: Convert to fraction form
    15,074.09/20,802.29 = 8,360.33/x
  3. Step 3: Cross multiply
    15,074.09x = 20,802.29 × 8,360.33
  4. Step 4: Simplify right side
    15,074.09x = 173,913,863.34
  5. Step 5: Solve for x
    x = 173,913,863.34/15,074.09
  6. Step 6: Final answer
    x = 11,537.27

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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.