Home / 12,901.46-19,369.96-6,665.76

Finding the Fourth Proportional to 12,901.46, 19,369.96 and 6,665.76

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Solution

The fourth proportional to 12,901.46, 19,369.96 and 6,665.76 is: 10,007.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,901.46 : 19,369.96 = 6,665.76 : x
  2. Step 2: Convert to fraction form
    12,901.46/19,369.96 = 6,665.76/x
  3. Step 3: Cross multiply
    12,901.46x = 19,369.96 × 6,665.76
  4. Step 4: Simplify right side
    12,901.46x = 129,115,487.91
  5. Step 5: Solve for x
    x = 129,115,487.91/12,901.46
  6. Step 6: Final answer
    x = 10,007.82

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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.