Home / 15,796.48-21,798.85-8,722.75

Finding the Fourth Proportional to 15,796.48, 21,798.85 and 8,722.75

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Solution

The fourth proportional to 15,796.48, 21,798.85 and 8,722.75 is: 12,037.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,796.48 : 21,798.85 = 8,722.75 : x
  2. Step 2: Convert to fraction form
    15,796.48/21,798.85 = 8,722.75/x
  3. Step 3: Cross multiply
    15,796.48x = 21,798.85 × 8,722.75
  4. Step 4: Simplify right side
    15,796.48x = 190,145,918.84
  5. Step 5: Solve for x
    x = 190,145,918.84/15,796.48
  6. Step 6: Final answer
    x = 12,037.23

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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.