Home / 14,178.50-21,260.60-8,257.30

Finding the Fourth Proportional to 14,178.50, 21,260.60 and 8,257.30

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Solution

The fourth proportional to 14,178.50, 21,260.60 and 8,257.30 is: 12,381.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,178.50 : 21,260.60 = 8,257.30 : x
  2. Step 2: Convert to fraction form
    14,178.50/21,260.60 = 8,257.30/x
  3. Step 3: Cross multiply
    14,178.50x = 21,260.60 × 8,257.30
  4. Step 4: Simplify right side
    14,178.50x = 175,555,152.38
  5. Step 5: Solve for x
    x = 175,555,152.38/14,178.50
  6. Step 6: Final answer
    x = 12,381.79

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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.