Home / 6,890.88-10,323.36-6,814.20

Finding the Fourth Proportional to 6,890.88, 10,323.36 and 6,814.20

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Solution

The fourth proportional to 6,890.88, 10,323.36 and 6,814.20 is: 10,208.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,890.88 : 10,323.36 = 6,814.20 : x
  2. Step 2: Convert to fraction form
    6,890.88/10,323.36 = 6,814.20/x
  3. Step 3: Cross multiply
    6,890.88x = 10,323.36 × 6,814.20
  4. Step 4: Simplify right side
    6,890.88x = 70,345,439.71
  5. Step 5: Solve for x
    x = 70,345,439.71/6,890.88
  6. Step 6: Final answer
    x = 10,208.48

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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.