Home / 11,899.45-16,429.26-10,636.47

Finding the Fourth Proportional to 11,899.45, 16,429.26 and 10,636.47

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Solution

The fourth proportional to 11,899.45, 16,429.26 and 10,636.47 is: 14,685.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,899.45 : 16,429.26 = 10,636.47 : x
  2. Step 2: Convert to fraction form
    11,899.45/16,429.26 = 10,636.47/x
  3. Step 3: Cross multiply
    11,899.45x = 16,429.26 × 10,636.47
  4. Step 4: Simplify right side
    11,899.45x = 174,749,331.11
  5. Step 5: Solve for x
    x = 174,749,331.11/11,899.45
  6. Step 6: Final answer
    x = 14,685.50

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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.