Home / 10,821.76-14,934.45-6,106.21

Finding the Fourth Proportional to 10,821.76, 14,934.45 and 6,106.21

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Solution

The fourth proportional to 10,821.76, 14,934.45 and 6,106.21 is: 8,426.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.76 : 14,934.45 = 6,106.21 : x
  2. Step 2: Convert to fraction form
    10,821.76/14,934.45 = 6,106.21/x
  3. Step 3: Cross multiply
    10,821.76x = 14,934.45 × 6,106.21
  4. Step 4: Simplify right side
    10,821.76x = 91,192,887.93
  5. Step 5: Solve for x
    x = 91,192,887.93/10,821.76
  6. Step 6: Final answer
    x = 8,426.81

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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.