Home / 18,758.56-25,885.20-10,372.96

Finding the Fourth Proportional to 18,758.56, 25,885.20 and 10,372.96

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Solution

The fourth proportional to 18,758.56, 25,885.20 and 10,372.96 is: 14,313.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,758.56 : 25,885.20 = 10,372.96 : x
  2. Step 2: Convert to fraction form
    18,758.56/25,885.20 = 10,372.96/x
  3. Step 3: Cross multiply
    18,758.56x = 25,885.20 × 10,372.96
  4. Step 4: Simplify right side
    18,758.56x = 268,506,144.19
  5. Step 5: Solve for x
    x = 268,506,144.19/18,758.56
  6. Step 6: Final answer
    x = 14,313.79

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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.