Home / 14,319.84-21,455.46-6,927.78

Finding the Fourth Proportional to 14,319.84, 21,455.46 and 6,927.78

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Solution

The fourth proportional to 14,319.84, 21,455.46 and 6,927.78 is: 10,379.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,319.84 : 21,455.46 = 6,927.78 : x
  2. Step 2: Convert to fraction form
    14,319.84/21,455.46 = 6,927.78/x
  3. Step 3: Cross multiply
    14,319.84x = 21,455.46 × 6,927.78
  4. Step 4: Simplify right side
    14,319.84x = 148,638,706.68
  5. Step 5: Solve for x
    x = 148,638,706.68/14,319.84
  6. Step 6: Final answer
    x = 10,379.91

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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.