Home / 12,850.80-19,276.20-6,289.80

Finding the Fourth Proportional to 12,850.80, 19,276.20 and 6,289.80

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Solution

The fourth proportional to 12,850.80, 19,276.20 and 6,289.80 is: 9,434.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,850.80 : 19,276.20 = 6,289.80 : x
  2. Step 2: Convert to fraction form
    12,850.80/19,276.20 = 6,289.80/x
  3. Step 3: Cross multiply
    12,850.80x = 19,276.20 × 6,289.80
  4. Step 4: Simplify right side
    12,850.80x = 121,243,442.76
  5. Step 5: Solve for x
    x = 121,243,442.76/12,850.80
  6. Step 6: Final answer
    x = 9,434.70

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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.