Home / 14,000.28-21,004.88-4,139.61

Finding the Fourth Proportional to 14,000.28, 21,004.88 and 4,139.61

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Solution

The fourth proportional to 14,000.28, 21,004.88 and 4,139.61 is: 6,210.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,000.28 : 21,004.88 = 4,139.61 : x
  2. Step 2: Convert to fraction form
    14,000.28/21,004.88 = 4,139.61/x
  3. Step 3: Cross multiply
    14,000.28x = 21,004.88 × 4,139.61
  4. Step 4: Simplify right side
    14,000.28x = 86,951,990.60
  5. Step 5: Solve for x
    x = 86,951,990.60/14,000.28
  6. Step 6: Final answer
    x = 6,210.73

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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.