Home / 18,465.60-27,698.56-5,318

Finding the Fourth Proportional to 18,465.60, 27,698.56 and 5,318

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Solution

The fourth proportional to 18,465.60, 27,698.56 and 5,318 is: 7,977.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,465.60 : 27,698.56 = 5,318 : x
  2. Step 2: Convert to fraction form
    18,465.60/27,698.56 = 5,318/x
  3. Step 3: Cross multiply
    18,465.60x = 27,698.56 × 5,318
  4. Step 4: Simplify right side
    18,465.60x = 147,300,942.08
  5. Step 5: Solve for x
    x = 147,300,942.08/18,465.60
  6. Step 6: Final answer
    x = 7,977.05

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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.