Home / 14,009.59-21,013.78-3,479.37

Finding the Fourth Proportional to 14,009.59, 21,013.78 and 3,479.37

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Solution

The fourth proportional to 14,009.59, 21,013.78 and 3,479.37 is: 5,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,009.59 : 21,013.78 = 3,479.37 : x
  2. Step 2: Convert to fraction form
    14,009.59/21,013.78 = 3,479.37/x
  3. Step 3: Cross multiply
    14,009.59x = 21,013.78 × 3,479.37
  4. Step 4: Simplify right side
    14,009.59x = 73,114,715.72
  5. Step 5: Solve for x
    x = 73,114,715.72/14,009.59
  6. Step 6: Final answer
    x = 5,218.90

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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.