Home / 14,782.40-22,144.80-8,921.60

Finding the Fourth Proportional to 14,782.40, 22,144.80 and 8,921.60

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Solution

The fourth proportional to 14,782.40, 22,144.80 and 8,921.60 is: 13,365.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,782.40 : 22,144.80 = 8,921.60 : x
  2. Step 2: Convert to fraction form
    14,782.40/22,144.80 = 8,921.60/x
  3. Step 3: Cross multiply
    14,782.40x = 22,144.80 × 8,921.60
  4. Step 4: Simplify right side
    14,782.40x = 197,567,047.68
  5. Step 5: Solve for x
    x = 197,567,047.68/14,782.40
  6. Step 6: Final answer
    x = 13,365.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.