Home / 6,511.51-9,768.18-2,127.86

Finding the Fourth Proportional to 6,511.51, 9,768.18 and 2,127.86

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Solution

The fourth proportional to 6,511.51, 9,768.18 and 2,127.86 is: 3,192.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,511.51 : 9,768.18 = 2,127.86 : x
  2. Step 2: Convert to fraction form
    6,511.51/9,768.18 = 2,127.86/x
  3. Step 3: Cross multiply
    6,511.51x = 9,768.18 × 2,127.86
  4. Step 4: Simplify right side
    6,511.51x = 20,785,319.49
  5. Step 5: Solve for x
    x = 20,785,319.49/6,511.51
  6. Step 6: Final answer
    x = 3,192.09

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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.