Home / 6,928.80-9,558-4,133.76

Finding the Fourth Proportional to 6,928.80, 9,558 and 4,133.76

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Solution

The fourth proportional to 6,928.80, 9,558 and 4,133.76 is: 5,702.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,928.80 : 9,558 = 4,133.76 : x
  2. Step 2: Convert to fraction form
    6,928.80/9,558 = 4,133.76/x
  3. Step 3: Cross multiply
    6,928.80x = 9,558 × 4,133.76
  4. Step 4: Simplify right side
    6,928.80x = 39,510,478.08
  5. Step 5: Solve for x
    x = 39,510,478.08/6,928.80
  6. Step 6: Final answer
    x = 5,702.36

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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.