Home / 7,475.90-11,213.73-1,928.77

Finding the Fourth Proportional to 7,475.90, 11,213.73 and 1,928.77

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Solution

The fourth proportional to 7,475.90, 11,213.73 and 1,928.77 is: 2,893.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,475.90 : 11,213.73 = 1,928.77 : x
  2. Step 2: Convert to fraction form
    7,475.90/11,213.73 = 1,928.77/x
  3. Step 3: Cross multiply
    7,475.90x = 11,213.73 × 1,928.77
  4. Step 4: Simplify right side
    7,475.90x = 21,628,754.11
  5. Step 5: Solve for x
    x = 21,628,754.11/7,475.90
  6. Step 6: Final answer
    x = 2,893.13

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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.