Home / 15,057.33-20,779.10-9,089.01

Finding the Fourth Proportional to 15,057.33, 20,779.10 and 9,089.01

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Solution

The fourth proportional to 15,057.33, 20,779.10 and 9,089.01 is: 12,542.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,057.33 : 20,779.10 = 9,089.01 : x
  2. Step 2: Convert to fraction form
    15,057.33/20,779.10 = 9,089.01/x
  3. Step 3: Cross multiply
    15,057.33x = 20,779.10 × 9,089.01
  4. Step 4: Simplify right side
    15,057.33x = 188,861,436.33
  5. Step 5: Solve for x
    x = 188,861,436.33/15,057.33
  6. Step 6: Final answer
    x = 12,542.83

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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.