Home / 10,821.80-14,934.14-6,106.38

Finding the Fourth Proportional to 10,821.80, 14,934.14 and 6,106.38

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Solution

The fourth proportional to 10,821.80, 14,934.14 and 6,106.38 is: 8,426.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.80 : 14,934.14 = 6,106.38 : x
  2. Step 2: Convert to fraction form
    10,821.80/14,934.14 = 6,106.38/x
  3. Step 3: Cross multiply
    10,821.80x = 14,934.14 × 6,106.38
  4. Step 4: Simplify right side
    10,821.80x = 91,193,503.28
  5. Step 5: Solve for x
    x = 91,193,503.28/10,821.80
  6. Step 6: Final answer
    x = 8,426.84

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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.