Home / 11,428.51-17,136.16-3,528.91

Finding the Fourth Proportional to 11,428.51, 17,136.16 and 3,528.91

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Solution

The fourth proportional to 11,428.51, 17,136.16 and 3,528.91 is: 5,291.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,428.51 : 17,136.16 = 3,528.91 : x
  2. Step 2: Convert to fraction form
    11,428.51/17,136.16 = 3,528.91/x
  3. Step 3: Cross multiply
    11,428.51x = 17,136.16 × 3,528.91
  4. Step 4: Simplify right side
    11,428.51x = 60,471,914.72
  5. Step 5: Solve for x
    x = 60,471,914.72/11,428.51
  6. Step 6: Final answer
    x = 5,291.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.