Home / 11,253.72-16,878.81-7,080.96

Finding the Fourth Proportional to 11,253.72, 16,878.81 and 7,080.96

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Solution

The fourth proportional to 11,253.72, 16,878.81 and 7,080.96 is: 10,620.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,253.72 : 16,878.81 = 7,080.96 : x
  2. Step 2: Convert to fraction form
    11,253.72/16,878.81 = 7,080.96/x
  3. Step 3: Cross multiply
    11,253.72x = 16,878.81 × 7,080.96
  4. Step 4: Simplify right side
    11,253.72x = 119,518,153.96
  5. Step 5: Solve for x
    x = 119,518,153.96/11,253.72
  6. Step 6: Final answer
    x = 10,620.32

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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.