Home / 6,513.76-9,768.40-2,130.14

Finding the Fourth Proportional to 6,513.76, 9,768.40 and 2,130.14

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Solution

The fourth proportional to 6,513.76, 9,768.40 and 2,130.14 is: 3,194.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,513.76 : 9,768.40 = 2,130.14 : x
  2. Step 2: Convert to fraction form
    6,513.76/9,768.40 = 2,130.14/x
  3. Step 3: Cross multiply
    6,513.76x = 9,768.40 × 2,130.14
  4. Step 4: Simplify right side
    6,513.76x = 20,808,059.58
  5. Step 5: Solve for x
    x = 20,808,059.58/6,513.76
  6. Step 6: Final answer
    x = 3,194.48

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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.