Home / 7,813.12-10,777.44-6,763.36

Finding the Fourth Proportional to 7,813.12, 10,777.44 and 6,763.36

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Solution

The fourth proportional to 7,813.12, 10,777.44 and 6,763.36 is: 9,329.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,813.12 : 10,777.44 = 6,763.36 : x
  2. Step 2: Convert to fraction form
    7,813.12/10,777.44 = 6,763.36/x
  3. Step 3: Cross multiply
    7,813.12x = 10,777.44 × 6,763.36
  4. Step 4: Simplify right side
    7,813.12x = 72,891,706.60
  5. Step 5: Solve for x
    x = 72,891,706.60/7,813.12
  6. Step 6: Final answer
    x = 9,329.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.