Home / 10,779.09-16,168.65-3,384.12

Finding the Fourth Proportional to 10,779.09, 16,168.65 and 3,384.12

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Solution

The fourth proportional to 10,779.09, 16,168.65 and 3,384.12 is: 5,076.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,779.09 : 16,168.65 = 3,384.12 : x
  2. Step 2: Convert to fraction form
    10,779.09/16,168.65 = 3,384.12/x
  3. Step 3: Cross multiply
    10,779.09x = 16,168.65 × 3,384.12
  4. Step 4: Simplify right side
    10,779.09x = 54,716,651.84
  5. Step 5: Solve for x
    x = 54,716,651.84/10,779.09
  6. Step 6: Final answer
    x = 5,076.18

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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.