Home / 7,813.42-11,724.70-2,886.50

Finding the Fourth Proportional to 7,813.42, 11,724.70 and 2,886.50

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Solution

The fourth proportional to 7,813.42, 11,724.70 and 2,886.50 is: 4,331.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,813.42 : 11,724.70 = 2,886.50 : x
  2. Step 2: Convert to fraction form
    7,813.42/11,724.70 = 2,886.50/x
  3. Step 3: Cross multiply
    7,813.42x = 11,724.70 × 2,886.50
  4. Step 4: Simplify right side
    7,813.42x = 33,843,346.55
  5. Step 5: Solve for x
    x = 33,843,346.55/7,813.42
  6. Step 6: Final answer
    x = 4,331.44

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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.