Home / 13,979.93-20,965.41-4,618.17

Finding the Fourth Proportional to 13,979.93, 20,965.41 and 4,618.17

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Solution

The fourth proportional to 13,979.93, 20,965.41 and 4,618.17 is: 6,925.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,979.93 : 20,965.41 = 4,618.17 : x
  2. Step 2: Convert to fraction form
    13,979.93/20,965.41 = 4,618.17/x
  3. Step 3: Cross multiply
    13,979.93x = 20,965.41 × 4,618.17
  4. Step 4: Simplify right side
    13,979.93x = 96,821,827.50
  5. Step 5: Solve for x
    x = 96,821,827.50/13,979.93
  6. Step 6: Final answer
    x = 6,925.78

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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.