Home / 11,615.99-16,029.55-6,580.11

Finding the Fourth Proportional to 11,615.99, 16,029.55 and 6,580.11

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Solution

The fourth proportional to 11,615.99, 16,029.55 and 6,580.11 is: 9,080.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,615.99 : 16,029.55 = 6,580.11 : x
  2. Step 2: Convert to fraction form
    11,615.99/16,029.55 = 6,580.11/x
  3. Step 3: Cross multiply
    11,615.99x = 16,029.55 × 6,580.11
  4. Step 4: Simplify right side
    11,615.99x = 105,476,089.20
  5. Step 5: Solve for x
    x = 105,476,089.20/11,615.99
  6. Step 6: Final answer
    x = 9,080.25

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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.