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Finding the Fourth Proportional to 12,903.30, 19,362.98 and 6,977.73

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Solution

The fourth proportional to 12,903.30, 19,362.98 and 6,977.73 is: 10,470.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,903.30 : 19,362.98 = 6,977.73 : x
  2. Step 2: Convert to fraction form
    12,903.30/19,362.98 = 6,977.73/x
  3. Step 3: Cross multiply
    12,903.30x = 19,362.98 × 6,977.73
  4. Step 4: Simplify right side
    12,903.30x = 135,109,572.01
  5. Step 5: Solve for x
    x = 135,109,572.01/12,903.30
  6. Step 6: Final answer
    x = 10,470.93

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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.