Home / 18,295.90-27,425.61-12,750.64

Finding the Fourth Proportional to 18,295.90, 27,425.61 and 12,750.64

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Solution

The fourth proportional to 18,295.90, 27,425.61 and 12,750.64 is: 19,113.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,295.90 : 27,425.61 = 12,750.64 : x
  2. Step 2: Convert to fraction form
    18,295.90/27,425.61 = 12,750.64/x
  3. Step 3: Cross multiply
    18,295.90x = 27,425.61 × 12,750.64
  4. Step 4: Simplify right side
    18,295.90x = 349,694,011.33
  5. Step 5: Solve for x
    x = 349,694,011.33/18,295.90
  6. Step 6: Final answer
    x = 19,113.25

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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.