Home / 7,457.12-11,188.40-3,947.32

Finding the Fourth Proportional to 7,457.12, 11,188.40 and 3,947.32

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Solution

The fourth proportional to 7,457.12, 11,188.40 and 3,947.32 is: 5,922.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,457.12 : 11,188.40 = 3,947.32 : x
  2. Step 2: Convert to fraction form
    7,457.12/11,188.40 = 3,947.32/x
  3. Step 3: Cross multiply
    7,457.12x = 11,188.40 × 3,947.32
  4. Step 4: Simplify right side
    7,457.12x = 44,164,195.09
  5. Step 5: Solve for x
    x = 44,164,195.09/7,457.12
  6. Step 6: Final answer
    x = 5,922.42

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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.