Home / 12,663.45-17,476.67-8,406.99

Finding the Fourth Proportional to 12,663.45, 17,476.67 and 8,406.99

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Solution

The fourth proportional to 12,663.45, 17,476.67 and 8,406.99 is: 11,602.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,663.45 : 17,476.67 = 8,406.99 : x
  2. Step 2: Convert to fraction form
    12,663.45/17,476.67 = 8,406.99/x
  3. Step 3: Cross multiply
    12,663.45x = 17,476.67 × 8,406.99
  4. Step 4: Simplify right side
    12,663.45x = 146,926,189.92
  5. Step 5: Solve for x
    x = 146,926,189.92/12,663.45
  6. Step 6: Final answer
    x = 11,602.38

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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.