Home / 18,345.74-27,520.43-5,698.50

Finding the Fourth Proportional to 18,345.74, 27,520.43 and 5,698.50

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Solution

The fourth proportional to 18,345.74, 27,520.43 and 5,698.50 is: 8,548.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,345.74 : 27,520.43 = 5,698.50 : x
  2. Step 2: Convert to fraction form
    18,345.74/27,520.43 = 5,698.50/x
  3. Step 3: Cross multiply
    18,345.74x = 27,520.43 × 5,698.50
  4. Step 4: Simplify right side
    18,345.74x = 156,825,241.54
  5. Step 5: Solve for x
    x = 156,825,241.54/18,345.74
  6. Step 6: Final answer
    x = 8,548.32

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Half scale
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Double scale
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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.