Home / 13,591.50-18,740.26-12,583.86

Finding the Fourth Proportional to 13,591.50, 18,740.26 and 12,583.86

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Solution

The fourth proportional to 13,591.50, 18,740.26 and 12,583.86 is: 17,350.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591.50 : 18,740.26 = 12,583.86 : x
  2. Step 2: Convert to fraction form
    13,591.50/18,740.26 = 12,583.86/x
  3. Step 3: Cross multiply
    13,591.50x = 18,740.26 × 12,583.86
  4. Step 4: Simplify right side
    13,591.50x = 235,824,808.20
  5. Step 5: Solve for x
    x = 235,824,808.20/13,591.50
  6. Step 6: Final answer
    x = 17,350.90

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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.