Home / 18,318.51-27,479.61-5,171.01

Finding the Fourth Proportional to 18,318.51, 27,479.61 and 5,171.01

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Solution

The fourth proportional to 18,318.51, 27,479.61 and 5,171.01 is: 7,757.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,318.51 : 27,479.61 = 5,171.01 : x
  2. Step 2: Convert to fraction form
    18,318.51/27,479.61 = 5,171.01/x
  3. Step 3: Cross multiply
    18,318.51x = 27,479.61 × 5,171.01
  4. Step 4: Simplify right side
    18,318.51x = 142,097,338.11
  5. Step 5: Solve for x
    x = 142,097,338.11/18,318.51
  6. Step 6: Final answer
    x = 7,757.04

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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.