Home / 12,895.40-19,328.70-5,498.60

Finding the Fourth Proportional to 12,895.40, 19,328.70 and 5,498.60

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Solution

The fourth proportional to 12,895.40, 19,328.70 and 5,498.60 is: 8,241.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,895.40 : 19,328.70 = 5,498.60 : x
  2. Step 2: Convert to fraction form
    12,895.40/19,328.70 = 5,498.60/x
  3. Step 3: Cross multiply
    12,895.40x = 19,328.70 × 5,498.60
  4. Step 4: Simplify right side
    12,895.40x = 106,280,789.82
  5. Step 5: Solve for x
    x = 106,280,789.82/12,895.40
  6. Step 6: Final answer
    x = 8,241.76

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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.