Home / 15,763.96-21,751.86-9,388.60

Finding the Fourth Proportional to 15,763.96, 21,751.86 and 9,388.60

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Solution

The fourth proportional to 15,763.96, 21,751.86 and 9,388.60 is: 12,954.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,763.96 : 21,751.86 = 9,388.60 : x
  2. Step 2: Convert to fraction form
    15,763.96/21,751.86 = 9,388.60/x
  3. Step 3: Cross multiply
    15,763.96x = 21,751.86 × 9,388.60
  4. Step 4: Simplify right side
    15,763.96x = 204,219,512.80
  5. Step 5: Solve for x
    x = 204,219,512.80/15,763.96
  6. Step 6: Final answer
    x = 12,954.84

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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.