Home / 11,149.81-15,389.69-6,677.03

Finding the Fourth Proportional to 11,149.81, 15,389.69 and 6,677.03

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Solution

The fourth proportional to 11,149.81, 15,389.69 and 6,677.03 is: 9,216.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,149.81 : 15,389.69 = 6,677.03 : x
  2. Step 2: Convert to fraction form
    11,149.81/15,389.69 = 6,677.03/x
  3. Step 3: Cross multiply
    11,149.81x = 15,389.69 × 6,677.03
  4. Step 4: Simplify right side
    11,149.81x = 102,757,426.91
  5. Step 5: Solve for x
    x = 102,757,426.91/11,149.81
  6. Step 6: Final answer
    x = 9,216.07

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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.