Home / 14,014.12-21,013.08-6,979.84

Finding the Fourth Proportional to 14,014.12, 21,013.08 and 6,979.84

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Solution

The fourth proportional to 14,014.12, 21,013.08 and 6,979.84 is: 10,465.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,014.12 : 21,013.08 = 6,979.84 : x
  2. Step 2: Convert to fraction form
    14,014.12/21,013.08 = 6,979.84/x
  3. Step 3: Cross multiply
    14,014.12x = 21,013.08 × 6,979.84
  4. Step 4: Simplify right side
    14,014.12x = 146,667,936.31
  5. Step 5: Solve for x
    x = 146,667,936.31/14,014.12
  6. Step 6: Final answer
    x = 10,465.73

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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.