Home / 13,983.98-20,979.25-4,623.99

Finding the Fourth Proportional to 13,983.98, 20,979.25 and 4,623.99

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Solution

The fourth proportional to 13,983.98, 20,979.25 and 4,623.99 is: 6,937.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,983.98 : 20,979.25 = 4,623.99 : x
  2. Step 2: Convert to fraction form
    13,983.98/20,979.25 = 4,623.99/x
  3. Step 3: Cross multiply
    13,983.98x = 20,979.25 × 4,623.99
  4. Step 4: Simplify right side
    13,983.98x = 97,007,830.65
  5. Step 5: Solve for x
    x = 97,007,830.65/13,983.98
  6. Step 6: Final answer
    x = 6,937.07

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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.