Home / 10,779.75-16,170.57-2,988.56

Finding the Fourth Proportional to 10,779.75, 16,170.57 and 2,988.56

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Solution

The fourth proportional to 10,779.75, 16,170.57 and 2,988.56 is: 4,483.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,779.75 : 16,170.57 = 2,988.56 : x
  2. Step 2: Convert to fraction form
    10,779.75/16,170.57 = 2,988.56/x
  3. Step 3: Cross multiply
    10,779.75x = 16,170.57 × 2,988.56
  4. Step 4: Simplify right side
    10,779.75x = 48,326,759.11
  5. Step 5: Solve for x
    x = 48,326,759.11/10,779.75
  6. Step 6: Final answer
    x = 4,483.11

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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.