Home / 7,830.12-11,722.14-5,226.60

Finding the Fourth Proportional to 7,830.12, 11,722.14 and 5,226.60

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Solution

The fourth proportional to 7,830.12, 11,722.14 and 5,226.60 is: 7,824.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,830.12 : 11,722.14 = 5,226.60 : x
  2. Step 2: Convert to fraction form
    7,830.12/11,722.14 = 5,226.60/x
  3. Step 3: Cross multiply
    7,830.12x = 11,722.14 × 5,226.60
  4. Step 4: Simplify right side
    7,830.12x = 61,266,936.92
  5. Step 5: Solve for x
    x = 61,266,936.92/7,830.12
  6. Step 6: Final answer
    x = 7,824.52

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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.