Home / 11,841.48-16,341.84-7,855.80

Finding the Fourth Proportional to 11,841.48, 16,341.84 and 7,855.80

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Solution

The fourth proportional to 11,841.48, 16,341.84 and 7,855.80 is: 10,841.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,841.48 : 16,341.84 = 7,855.80 : x
  2. Step 2: Convert to fraction form
    11,841.48/16,341.84 = 7,855.80/x
  3. Step 3: Cross multiply
    11,841.48x = 16,341.84 × 7,855.80
  4. Step 4: Simplify right side
    11,841.48x = 128,378,226.67
  5. Step 5: Solve for x
    x = 128,378,226.67/11,841.48
  6. Step 6: Final answer
    x = 10,841.40

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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.