Home / 14,009.32-21,013.44-3,479.36

Finding the Fourth Proportional to 14,009.32, 21,013.44 and 3,479.36

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Solution

The fourth proportional to 14,009.32, 21,013.44 and 3,479.36 is: 5,218.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,009.32 : 21,013.44 = 3,479.36 : x
  2. Step 2: Convert to fraction form
    14,009.32/21,013.44 = 3,479.36/x
  3. Step 3: Cross multiply
    14,009.32x = 21,013.44 × 3,479.36
  4. Step 4: Simplify right side
    14,009.32x = 73,113,322.60
  5. Step 5: Solve for x
    x = 73,113,322.60/14,009.32
  6. Step 6: Final answer
    x = 5,218.91

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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.