Home / 18,647.49-27,966.96-5,320.23

Finding the Fourth Proportional to 18,647.49, 27,966.96 and 5,320.23

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Solution

The fourth proportional to 18,647.49, 27,966.96 and 5,320.23 is: 7,979.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,647.49 : 27,966.96 = 5,320.23 : x
  2. Step 2: Convert to fraction form
    18,647.49/27,966.96 = 5,320.23/x
  3. Step 3: Cross multiply
    18,647.49x = 27,966.96 × 5,320.23
  4. Step 4: Simplify right side
    18,647.49x = 148,790,659.60
  5. Step 5: Solve for x
    x = 148,790,659.60/18,647.49
  6. Step 6: Final answer
    x = 7,979.13

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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.