Home / 18,936.52-28,394.91-7,080.55

Finding the Fourth Proportional to 18,936.52, 28,394.91 and 7,080.55

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Solution

The fourth proportional to 18,936.52, 28,394.91 and 7,080.55 is: 10,617.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,936.52 : 28,394.91 = 7,080.55 : x
  2. Step 2: Convert to fraction form
    18,936.52/28,394.91 = 7,080.55/x
  3. Step 3: Cross multiply
    18,936.52x = 28,394.91 × 7,080.55
  4. Step 4: Simplify right side
    18,936.52x = 201,051,509.01
  5. Step 5: Solve for x
    x = 201,051,509.01/18,936.52
  6. Step 6: Final answer
    x = 10,617.13

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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.