Home / 18,669.60-25,764.48-10,286.88

Finding the Fourth Proportional to 18,669.60, 25,764.48 and 10,286.88

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Solution

The fourth proportional to 18,669.60, 25,764.48 and 10,286.88 is: 14,196.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,669.60 : 25,764.48 = 10,286.88 : x
  2. Step 2: Convert to fraction form
    18,669.60/25,764.48 = 10,286.88/x
  3. Step 3: Cross multiply
    18,669.60x = 25,764.48 × 10,286.88
  4. Step 4: Simplify right side
    18,669.60x = 265,036,114.02
  5. Step 5: Solve for x
    x = 265,036,114.02/18,669.60
  6. Step 6: Final answer
    x = 14,196.13

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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.