Home / 7,205.04-9,928.80-5,105.52

Finding the Fourth Proportional to 7,205.04, 9,928.80 and 5,105.52

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Solution

The fourth proportional to 7,205.04, 9,928.80 and 5,105.52 is: 7,035.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,205.04 : 9,928.80 = 5,105.52 : x
  2. Step 2: Convert to fraction form
    7,205.04/9,928.80 = 5,105.52/x
  3. Step 3: Cross multiply
    7,205.04x = 9,928.80 × 5,105.52
  4. Step 4: Simplify right side
    7,205.04x = 50,691,686.98
  5. Step 5: Solve for x
    x = 50,691,686.98/7,205.04
  6. Step 6: Final answer
    x = 7,035.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.