Home / 14,168.94-21,239.85-5,281.92

Finding the Fourth Proportional to 14,168.94, 21,239.85 and 5,281.92

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Solution

The fourth proportional to 14,168.94, 21,239.85 and 5,281.92 is: 7,917.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,168.94 : 21,239.85 = 5,281.92 : x
  2. Step 2: Convert to fraction form
    14,168.94/21,239.85 = 5,281.92/x
  3. Step 3: Cross multiply
    14,168.94x = 21,239.85 × 5,281.92
  4. Step 4: Simplify right side
    14,168.94x = 112,187,188.51
  5. Step 5: Solve for x
    x = 112,187,188.51/14,168.94
  6. Step 6: Final answer
    x = 7,917.83

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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.