Home / 11,685.04-16,126.77-6,650.49

Finding the Fourth Proportional to 11,685.04, 16,126.77 and 6,650.49

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Solution

The fourth proportional to 11,685.04, 16,126.77 and 6,650.49 is: 9,178.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,685.04 : 16,126.77 = 6,650.49 : x
  2. Step 2: Convert to fraction form
    11,685.04/16,126.77 = 6,650.49/x
  3. Step 3: Cross multiply
    11,685.04x = 16,126.77 × 6,650.49
  4. Step 4: Simplify right side
    11,685.04x = 107,250,841.98
  5. Step 5: Solve for x
    x = 107,250,841.98/11,685.04
  6. Step 6: Final answer
    x = 9,178.47

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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.