Home / 7,412.94-11,118.58-1,866.29

Finding the Fourth Proportional to 7,412.94, 11,118.58 and 1,866.29

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Solution

The fourth proportional to 7,412.94, 11,118.58 and 1,866.29 is: 2,799.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,412.94 : 11,118.58 = 1,866.29 : x
  2. Step 2: Convert to fraction form
    7,412.94/11,118.58 = 1,866.29/x
  3. Step 3: Cross multiply
    7,412.94x = 11,118.58 × 1,866.29
  4. Step 4: Simplify right side
    7,412.94x = 20,750,439.08
  5. Step 5: Solve for x
    x = 20,750,439.08/7,412.94
  6. Step 6: Final answer
    x = 2,799.22

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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.