Home / 12,221.13-16,865.10-6,632.13

Finding the Fourth Proportional to 12,221.13, 16,865.10 and 6,632.13

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Solution

The fourth proportional to 12,221.13, 16,865.10 and 6,632.13 is: 9,152.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,221.13 : 16,865.10 = 6,632.13 : x
  2. Step 2: Convert to fraction form
    12,221.13/16,865.10 = 6,632.13/x
  3. Step 3: Cross multiply
    12,221.13x = 16,865.10 × 6,632.13
  4. Step 4: Simplify right side
    12,221.13x = 111,851,535.66
  5. Step 5: Solve for x
    x = 111,851,535.66/12,221.13
  6. Step 6: Final answer
    x = 9,152.31

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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.