Home / 12,221.66-16,851.09-10,329.86

Finding the Fourth Proportional to 12,221.66, 16,851.09 and 10,329.86

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Solution

The fourth proportional to 12,221.66, 16,851.09 and 10,329.86 is: 14,242.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,221.66 : 16,851.09 = 10,329.86 : x
  2. Step 2: Convert to fraction form
    12,221.66/16,851.09 = 10,329.86/x
  3. Step 3: Cross multiply
    12,221.66x = 16,851.09 × 10,329.86
  4. Step 4: Simplify right side
    12,221.66x = 174,069,400.55
  5. Step 5: Solve for x
    x = 174,069,400.55/12,221.66
  6. Step 6: Final answer
    x = 14,242.70

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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.