Home / 18,213.60-27,304.20-7,117.77

Finding the Fourth Proportional to 18,213.60, 27,304.20 and 7,117.77

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Solution

The fourth proportional to 18,213.60, 27,304.20 and 7,117.77 is: 10,670.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,213.60 : 27,304.20 = 7,117.77 : x
  2. Step 2: Convert to fraction form
    18,213.60/27,304.20 = 7,117.77/x
  3. Step 3: Cross multiply
    18,213.60x = 27,304.20 × 7,117.77
  4. Step 4: Simplify right side
    18,213.60x = 194,345,015.63
  5. Step 5: Solve for x
    x = 194,345,015.63/18,213.60
  6. Step 6: Final answer
    x = 10,670.32

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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.