Home / 10,779.63-16,170.81-4,210.43

Finding the Fourth Proportional to 10,779.63, 16,170.81 and 4,210.43

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Solution

The fourth proportional to 10,779.63, 16,170.81 and 4,210.43 is: 6,316.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,779.63 : 16,170.81 = 4,210.43 : x
  2. Step 2: Convert to fraction form
    10,779.63/16,170.81 = 4,210.43/x
  3. Step 3: Cross multiply
    10,779.63x = 16,170.81 × 4,210.43
  4. Step 4: Simplify right side
    10,779.63x = 68,086,093.39
  5. Step 5: Solve for x
    x = 68,086,093.39/10,779.63
  6. Step 6: Final answer
    x = 6,316.18

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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.