Home / 18,660.34-25,751.28-11,586.76

Finding the Fourth Proportional to 18,660.34, 25,751.28 and 11,586.76

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Solution

The fourth proportional to 18,660.34, 25,751.28 and 11,586.76 is: 15,989.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,660.34 : 25,751.28 = 11,586.76 : x
  2. Step 2: Convert to fraction form
    18,660.34/25,751.28 = 11,586.76/x
  3. Step 3: Cross multiply
    18,660.34x = 25,751.28 × 11,586.76
  4. Step 4: Simplify right side
    18,660.34x = 298,373,901.05
  5. Step 5: Solve for x
    x = 298,373,901.05/18,660.34
  6. Step 6: Final answer
    x = 15,989.74

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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.