Home / 14,129.15-21,193.72-8,282.57

Finding the Fourth Proportional to 14,129.15, 21,193.72 and 8,282.57

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Solution

The fourth proportional to 14,129.15, 21,193.72 and 8,282.57 is: 12,423.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,129.15 : 21,193.72 = 8,282.57 : x
  2. Step 2: Convert to fraction form
    14,129.15/21,193.72 = 8,282.57/x
  3. Step 3: Cross multiply
    14,129.15x = 21,193.72 × 8,282.57
  4. Step 4: Simplify right side
    14,129.15x = 175,538,342.79
  5. Step 5: Solve for x
    x = 175,538,342.79/14,129.15
  6. Step 6: Final answer
    x = 12,423.85

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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.