Home / 14,239.84-21,359.04-5,005.12

Finding the Fourth Proportional to 14,239.84, 21,359.04 and 5,005.12

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Solution

The fourth proportional to 14,239.84, 21,359.04 and 5,005.12 is: 7,507.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,239.84 : 21,359.04 = 5,005.12 : x
  2. Step 2: Convert to fraction form
    14,239.84/21,359.04 = 5,005.12/x
  3. Step 3: Cross multiply
    14,239.84x = 21,359.04 × 5,005.12
  4. Step 4: Simplify right side
    14,239.84x = 106,904,558.28
  5. Step 5: Solve for x
    x = 106,904,558.28/14,239.84
  6. Step 6: Final answer
    x = 7,507.43

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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.