Home / 12,850.17-19,276.55-3,490.34

Finding the Fourth Proportional to 12,850.17, 19,276.55 and 3,490.34

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Solution

The fourth proportional to 12,850.17, 19,276.55 and 3,490.34 is: 5,235.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,850.17 : 19,276.55 = 3,490.34 : x
  2. Step 2: Convert to fraction form
    12,850.17/19,276.55 = 3,490.34/x
  3. Step 3: Cross multiply
    12,850.17x = 19,276.55 × 3,490.34
  4. Step 4: Simplify right side
    12,850.17x = 67,281,599.69
  5. Step 5: Solve for x
    x = 67,281,599.69/12,850.17
  6. Step 6: Final answer
    x = 5,235.85

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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.