Home / 11,465.66-17,120.83-9,099.09

Finding the Fourth Proportional to 11,465.66, 17,120.83 and 9,099.09

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Solution

The fourth proportional to 11,465.66, 17,120.83 and 9,099.09 is: 13,587.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,465.66 : 17,120.83 = 9,099.09 : x
  2. Step 2: Convert to fraction form
    11,465.66/17,120.83 = 9,099.09/x
  3. Step 3: Cross multiply
    11,465.66x = 17,120.83 × 9,099.09
  4. Step 4: Simplify right side
    11,465.66x = 155,783,973.04
  5. Step 5: Solve for x
    x = 155,783,973.04/11,465.66
  6. Step 6: Final answer
    x = 13,587.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.