Home / 9,928.71-13,692.48-6,746.78

Finding the Fourth Proportional to 9,928.71, 13,692.48 and 6,746.78

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Solution

The fourth proportional to 9,928.71, 13,692.48 and 6,746.78 is: 9,304.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,928.71 : 13,692.48 = 6,746.78 : x
  2. Step 2: Convert to fraction form
    9,928.71/13,692.48 = 6,746.78/x
  3. Step 3: Cross multiply
    9,928.71x = 13,692.48 × 6,746.78
  4. Step 4: Simplify right side
    9,928.71x = 92,380,081.75
  5. Step 5: Solve for x
    x = 92,380,081.75/9,928.71
  6. Step 6: Final answer
    x = 9,304.34

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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.