Home / 11,591.20-15,966.68-10,740.68

Finding the Fourth Proportional to 11,591.20, 15,966.68 and 10,740.68

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Solution

The fourth proportional to 11,591.20, 15,966.68 and 10,740.68 is: 14,795.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,591.20 : 15,966.68 = 10,740.68 : x
  2. Step 2: Convert to fraction form
    11,591.20/15,966.68 = 10,740.68/x
  3. Step 3: Cross multiply
    11,591.20x = 15,966.68 × 10,740.68
  4. Step 4: Simplify right side
    11,591.20x = 171,493,000.54
  5. Step 5: Solve for x
    x = 171,493,000.54/11,591.20
  6. Step 6: Final answer
    x = 14,795.10

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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.