Home / 18,770.42-25,903.19-10,272.55

Finding the Fourth Proportional to 18,770.42, 25,903.19 and 10,272.55

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Solution

The fourth proportional to 18,770.42, 25,903.19 and 10,272.55 is: 14,176.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,770.42 : 25,903.19 = 10,272.55 : x
  2. Step 2: Convert to fraction form
    18,770.42/25,903.19 = 10,272.55/x
  3. Step 3: Cross multiply
    18,770.42x = 25,903.19 × 10,272.55
  4. Step 4: Simplify right side
    18,770.42x = 266,091,698.31
  5. Step 5: Solve for x
    x = 266,091,698.31/18,770.42
  6. Step 6: Final answer
    x = 14,176.12

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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.