Home / 6,780.96-10,184.81-6,489.36

Finding the Fourth Proportional to 6,780.96, 10,184.81 and 6,489.36

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Solution

The fourth proportional to 6,780.96, 10,184.81 and 6,489.36 is: 9,746.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,780.96 : 10,184.81 = 6,489.36 : x
  2. Step 2: Convert to fraction form
    6,780.96/10,184.81 = 6,489.36/x
  3. Step 3: Cross multiply
    6,780.96x = 10,184.81 × 6,489.36
  4. Step 4: Simplify right side
    6,780.96x = 66,092,866.17
  5. Step 5: Solve for x
    x = 66,092,866.17/6,780.96
  6. Step 6: Final answer
    x = 9,746.83

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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.