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Finding the Fourth Proportional to 8,925.69, 13,390.41 and 3,378.93

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Solution

The fourth proportional to 8,925.69, 13,390.41 and 3,378.93 is: 5,069.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,925.69 : 13,390.41 = 3,378.93 : x
  2. Step 2: Convert to fraction form
    8,925.69/13,390.41 = 3,378.93/x
  3. Step 3: Cross multiply
    8,925.69x = 13,390.41 × 3,378.93
  4. Step 4: Simplify right side
    8,925.69x = 45,245,258.06
  5. Step 5: Solve for x
    x = 45,245,258.06/8,925.69
  6. Step 6: Final answer
    x = 5,069.10

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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.