Home / 8,946.85-13,415.95-3,320.64

Finding the Fourth Proportional to 8,946.85, 13,415.95 and 3,320.64

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Solution

The fourth proportional to 8,946.85, 13,415.95 and 3,320.64 is: 4,979.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,946.85 : 13,415.95 = 3,320.64 : x
  2. Step 2: Convert to fraction form
    8,946.85/13,415.95 = 3,320.64/x
  3. Step 3: Cross multiply
    8,946.85x = 13,415.95 × 3,320.64
  4. Step 4: Simplify right side
    8,946.85x = 44,549,540.21
  5. Step 5: Solve for x
    x = 44,549,540.21/8,946.85
  6. Step 6: Final answer
    x = 4,979.35

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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.