Home / 10,438.70-14,406.55-6,665.34

Finding the Fourth Proportional to 10,438.70, 14,406.55 and 6,665.34

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Solution

The fourth proportional to 10,438.70, 14,406.55 and 6,665.34 is: 9,198.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,438.70 : 14,406.55 = 6,665.34 : x
  2. Step 2: Convert to fraction form
    10,438.70/14,406.55 = 6,665.34/x
  3. Step 3: Cross multiply
    10,438.70x = 14,406.55 × 6,665.34
  4. Step 4: Simplify right side
    10,438.70x = 96,024,553.98
  5. Step 5: Solve for x
    x = 96,024,553.98/10,438.70
  6. Step 6: Final answer
    x = 9,198.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.