Home / 18,539.79-25,591.16-11,271.86

Finding the Fourth Proportional to 18,539.79, 25,591.16 and 11,271.86

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Solution

The fourth proportional to 18,539.79, 25,591.16 and 11,271.86 is: 15,558.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,539.79 : 25,591.16 = 11,271.86 : x
  2. Step 2: Convert to fraction form
    18,539.79/25,591.16 = 11,271.86/x
  3. Step 3: Cross multiply
    18,539.79x = 25,591.16 × 11,271.86
  4. Step 4: Simplify right side
    18,539.79x = 288,459,788.44
  5. Step 5: Solve for x
    x = 288,459,788.44/18,539.79
  6. Step 6: Final answer
    x = 15,558.96

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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.