Home / 11,079.87-15,277.77-9,057

Finding the Fourth Proportional to 11,079.87, 15,277.77 and 9,057

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Solution

The fourth proportional to 11,079.87, 15,277.77 and 9,057 is: 12,488.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,079.87 : 15,277.77 = 9,057 : x
  2. Step 2: Convert to fraction form
    11,079.87/15,277.77 = 9,057/x
  3. Step 3: Cross multiply
    11,079.87x = 15,277.77 × 9,057
  4. Step 4: Simplify right side
    11,079.87x = 138,370,762.89
  5. Step 5: Solve for x
    x = 138,370,762.89/11,079.87
  6. Step 6: Final answer
    x = 12,488.48

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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.