Home / 18,156.20-27,212.70-9,386.60

Finding the Fourth Proportional to 18,156.20, 27,212.70 and 9,386.60

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Solution

The fourth proportional to 18,156.20, 27,212.70 and 9,386.60 is: 14,068.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,156.20 : 27,212.70 = 9,386.60 : x
  2. Step 2: Convert to fraction form
    18,156.20/27,212.70 = 9,386.60/x
  3. Step 3: Cross multiply
    18,156.20x = 27,212.70 × 9,386.60
  4. Step 4: Simplify right side
    18,156.20x = 255,434,729.82
  5. Step 5: Solve for x
    x = 255,434,729.82/18,156.20
  6. Step 6: Final answer
    x = 14,068.73

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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.