Home / 13,078.94-18,052.89-8,889.62

Finding the Fourth Proportional to 13,078.94, 18,052.89 and 8,889.62

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Solution

The fourth proportional to 13,078.94, 18,052.89 and 8,889.62 is: 12,270.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,078.94 : 18,052.89 = 8,889.62 : x
  2. Step 2: Convert to fraction form
    13,078.94/18,052.89 = 8,889.62/x
  3. Step 3: Cross multiply
    13,078.94x = 18,052.89 × 8,889.62
  4. Step 4: Simplify right side
    13,078.94x = 160,483,332.00
  5. Step 5: Solve for x
    x = 160,483,332.00/13,078.94
  6. Step 6: Final answer
    x = 12,270.36

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.