Home / 14,579.12-20,110.20-10,388.72

Finding the Fourth Proportional to 14,579.12, 20,110.20 and 10,388.72

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Solution

The fourth proportional to 14,579.12, 20,110.20 and 10,388.72 is: 14,330.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,579.12 : 20,110.20 = 10,388.72 : x
  2. Step 2: Convert to fraction form
    14,579.12/20,110.20 = 10,388.72/x
  3. Step 3: Cross multiply
    14,579.12x = 20,110.20 × 10,388.72
  4. Step 4: Simplify right side
    14,579.12x = 208,919,236.94
  5. Step 5: Solve for x
    x = 208,919,236.94/14,579.12
  6. Step 6: Final answer
    x = 14,330.03

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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.