Home / 14,278.99-21,423.61-6,380.85

Finding the Fourth Proportional to 14,278.99, 21,423.61 and 6,380.85

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Solution

The fourth proportional to 14,278.99, 21,423.61 and 6,380.85 is: 9,573.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,278.99 : 21,423.61 = 6,380.85 : x
  2. Step 2: Convert to fraction form
    14,278.99/21,423.61 = 6,380.85/x
  3. Step 3: Cross multiply
    14,278.99x = 21,423.61 × 6,380.85
  4. Step 4: Simplify right side
    14,278.99x = 136,700,841.87
  5. Step 5: Solve for x
    x = 136,700,841.87/14,278.99
  6. Step 6: Final answer
    x = 9,573.57

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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.