Home / 19,087.51-28,631.78-7,239.08

Finding the Fourth Proportional to 19,087.51, 28,631.78 and 7,239.08

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Solution

The fourth proportional to 19,087.51, 28,631.78 and 7,239.08 is: 10,858.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,087.51 : 28,631.78 = 7,239.08 : x
  2. Step 2: Convert to fraction form
    19,087.51/28,631.78 = 7,239.08/x
  3. Step 3: Cross multiply
    19,087.51x = 28,631.78 × 7,239.08
  4. Step 4: Simplify right side
    19,087.51x = 207,267,662.10
  5. Step 5: Solve for x
    x = 207,267,662.10/19,087.51
  6. Step 6: Final answer
    x = 10,858.81

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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.