Home / 10,672.36-16,011.61-4,431.21

Finding the Fourth Proportional to 10,672.36, 16,011.61 and 4,431.21

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Solution

The fourth proportional to 10,672.36, 16,011.61 and 4,431.21 is: 6,648.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,672.36 : 16,011.61 = 4,431.21 : x
  2. Step 2: Convert to fraction form
    10,672.36/16,011.61 = 4,431.21/x
  3. Step 3: Cross multiply
    10,672.36x = 16,011.61 × 4,431.21
  4. Step 4: Simplify right side
    10,672.36x = 70,950,735.23
  5. Step 5: Solve for x
    x = 70,950,735.23/10,672.36
  6. Step 6: Final answer
    x = 6,648.08

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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.