Home / 18,112.77-27,166.04-4,785.91

Finding the Fourth Proportional to 18,112.77, 27,166.04 and 4,785.91

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Solution

The fourth proportional to 18,112.77, 27,166.04 and 4,785.91 is: 7,178.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,112.77 : 27,166.04 = 4,785.91 : x
  2. Step 2: Convert to fraction form
    18,112.77/27,166.04 = 4,785.91/x
  3. Step 3: Cross multiply
    18,112.77x = 27,166.04 × 4,785.91
  4. Step 4: Simplify right side
    18,112.77x = 130,014,166.55
  5. Step 5: Solve for x
    x = 130,014,166.55/18,112.77
  6. Step 6: Final answer
    x = 7,178.04

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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.