Home / 8,920.49-13,376.85-4,759.57

Finding the Fourth Proportional to 8,920.49, 13,376.85 and 4,759.57

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Solution

The fourth proportional to 8,920.49, 13,376.85 and 4,759.57 is: 7,137.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,920.49 : 13,376.85 = 4,759.57 : x
  2. Step 2: Convert to fraction form
    8,920.49/13,376.85 = 4,759.57/x
  3. Step 3: Cross multiply
    8,920.49x = 13,376.85 × 4,759.57
  4. Step 4: Simplify right side
    8,920.49x = 63,667,987.07
  5. Step 5: Solve for x
    x = 63,667,987.07/8,920.49
  6. Step 6: Final answer
    x = 7,137.28

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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.