Home / 14,007.68-21,009.84-3,619.04

Finding the Fourth Proportional to 14,007.68, 21,009.84 and 3,619.04

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Solution

The fourth proportional to 14,007.68, 21,009.84 and 3,619.04 is: 5,428.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,007.68 : 21,009.84 = 3,619.04 : x
  2. Step 2: Convert to fraction form
    14,007.68/21,009.84 = 3,619.04/x
  3. Step 3: Cross multiply
    14,007.68x = 21,009.84 × 3,619.04
  4. Step 4: Simplify right side
    14,007.68x = 76,035,451.35
  5. Step 5: Solve for x
    x = 76,035,451.35/14,007.68
  6. Step 6: Final answer
    x = 5,428.13

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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.