Home / 14,278.73-21,423.15-6,380.51

Finding the Fourth Proportional to 14,278.73, 21,423.15 and 6,380.51

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Solution

The fourth proportional to 14,278.73, 21,423.15 and 6,380.51 is: 9,573.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,278.73 : 21,423.15 = 6,380.51 : x
  2. Step 2: Convert to fraction form
    14,278.73/21,423.15 = 6,380.51/x
  3. Step 3: Cross multiply
    14,278.73x = 21,423.15 × 6,380.51
  4. Step 4: Simplify right side
    14,278.73x = 136,690,515.69
  5. Step 5: Solve for x
    x = 136,690,515.69/14,278.73
  6. Step 6: Final answer
    x = 9,573.02

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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.