Home / 14,982.56-20,653.20-10,789.28

Finding the Fourth Proportional to 14,982.56, 20,653.20 and 10,789.28

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Solution

The fourth proportional to 14,982.56, 20,653.20 and 10,789.28 is: 14,872.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,982.56 : 20,653.20 = 10,789.28 : x
  2. Step 2: Convert to fraction form
    14,982.56/20,653.20 = 10,789.28/x
  3. Step 3: Cross multiply
    14,982.56x = 20,653.20 × 10,789.28
  4. Step 4: Simplify right side
    14,982.56x = 222,833,157.70
  5. Step 5: Solve for x
    x = 222,833,157.70/14,982.56
  6. Step 6: Final answer
    x = 14,872.84

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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.