Home / 14,005.84-21,005.72-4,143.44

Finding the Fourth Proportional to 14,005.84, 21,005.72 and 4,143.44

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Solution

The fourth proportional to 14,005.84, 21,005.72 and 4,143.44 is: 6,214.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,005.84 : 21,005.72 = 4,143.44 : x
  2. Step 2: Convert to fraction form
    14,005.84/21,005.72 = 4,143.44/x
  3. Step 3: Cross multiply
    14,005.84x = 21,005.72 × 4,143.44
  4. Step 4: Simplify right side
    14,005.84x = 87,035,940.48
  5. Step 5: Solve for x
    x = 87,035,940.48/14,005.84
  6. Step 6: Final answer
    x = 6,214.26

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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.