Home / 14,120.61-21,182.73-4,260.88

Finding the Fourth Proportional to 14,120.61, 21,182.73 and 4,260.88

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Solution

The fourth proportional to 14,120.61, 21,182.73 and 4,260.88 is: 6,391.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120.61 : 21,182.73 = 4,260.88 : x
  2. Step 2: Convert to fraction form
    14,120.61/21,182.73 = 4,260.88/x
  3. Step 3: Cross multiply
    14,120.61x = 21,182.73 × 4,260.88
  4. Step 4: Simplify right side
    14,120.61x = 90,257,070.60
  5. Step 5: Solve for x
    x = 90,257,070.60/14,120.61
  6. Step 6: Final answer
    x = 6,391.87

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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.