Home / 10,431.99-14,400.81-6,660.09

Finding the Fourth Proportional to 10,431.99, 14,400.81 and 6,660.09

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Solution

The fourth proportional to 10,431.99, 14,400.81 and 6,660.09 is: 9,193.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431.99 : 14,400.81 = 6,660.09 : x
  2. Step 2: Convert to fraction form
    10,431.99/14,400.81 = 6,660.09/x
  3. Step 3: Cross multiply
    10,431.99x = 14,400.81 × 6,660.09
  4. Step 4: Simplify right side
    10,431.99x = 95,910,690.67
  5. Step 5: Solve for x
    x = 95,910,690.67/10,431.99
  6. Step 6: Final answer
    x = 9,193.90

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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.