Home / 8,928.90-13,396.39-4,308.74

Finding the Fourth Proportional to 8,928.90, 13,396.39 and 4,308.74

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Solution

The fourth proportional to 8,928.90, 13,396.39 and 4,308.74 is: 6,464.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.90 : 13,396.39 = 4,308.74 : x
  2. Step 2: Convert to fraction form
    8,928.90/13,396.39 = 4,308.74/x
  3. Step 3: Cross multiply
    8,928.90x = 13,396.39 × 4,308.74
  4. Step 4: Simplify right side
    8,928.90x = 57,721,561.45
  5. Step 5: Solve for x
    x = 57,721,561.45/8,928.90
  6. Step 6: Final answer
    x = 6,464.58

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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.