Home / 8,505.12-12,756.84-2,661.56

Finding the Fourth Proportional to 8,505.12, 12,756.84 and 2,661.56

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Solution

The fourth proportional to 8,505.12, 12,756.84 and 2,661.56 is: 3,992.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,505.12 : 12,756.84 = 2,661.56 : x
  2. Step 2: Convert to fraction form
    8,505.12/12,756.84 = 2,661.56/x
  3. Step 3: Cross multiply
    8,505.12x = 12,756.84 × 2,661.56
  4. Step 4: Simplify right side
    8,505.12x = 33,953,095.07
  5. Step 5: Solve for x
    x = 33,953,095.07/8,505.12
  6. Step 6: Final answer
    x = 3,992.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.