Home / 12,857.04-19,285.98-4,423.46

Finding the Fourth Proportional to 12,857.04, 19,285.98 and 4,423.46

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Solution

The fourth proportional to 12,857.04, 19,285.98 and 4,423.46 is: 6,635.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,857.04 : 19,285.98 = 4,423.46 : x
  2. Step 2: Convert to fraction form
    12,857.04/19,285.98 = 4,423.46/x
  3. Step 3: Cross multiply
    12,857.04x = 19,285.98 × 4,423.46
  4. Step 4: Simplify right side
    12,857.04x = 85,310,761.09
  5. Step 5: Solve for x
    x = 85,310,761.09/12,857.04
  6. Step 6: Final answer
    x = 6,635.34

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Similar ratio
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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.