Home / 12,896.40-19,432.46-10,607.68

Finding the Fourth Proportional to 12,896.40, 19,432.46 and 10,607.68

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Solution

The fourth proportional to 12,896.40, 19,432.46 and 10,607.68 is: 15,983.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,896.40 : 19,432.46 = 10,607.68 : x
  2. Step 2: Convert to fraction form
    12,896.40/19,432.46 = 10,607.68/x
  3. Step 3: Cross multiply
    12,896.40x = 19,432.46 × 10,607.68
  4. Step 4: Simplify right side
    12,896.40x = 206,133,317.29
  5. Step 5: Solve for x
    x = 206,133,317.29/12,896.40
  6. Step 6: Final answer
    x = 15,983.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.