Home / 10,934.40-16,369.20-7,240.80

Finding the Fourth Proportional to 10,934.40, 16,369.20 and 7,240.80

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Solution

The fourth proportional to 10,934.40, 16,369.20 and 7,240.80 is: 10,839.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,934.40 : 16,369.20 = 7,240.80 : x
  2. Step 2: Convert to fraction form
    10,934.40/16,369.20 = 7,240.80/x
  3. Step 3: Cross multiply
    10,934.40x = 16,369.20 × 7,240.80
  4. Step 4: Simplify right side
    10,934.40x = 118,526,103.36
  5. Step 5: Solve for x
    x = 118,526,103.36/10,934.40
  6. Step 6: Final answer
    x = 10,839.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.