Home / 17,009.05-25,509.93-5,320.75

Finding the Fourth Proportional to 17,009.05, 25,509.93 and 5,320.75

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Solution

The fourth proportional to 17,009.05, 25,509.93 and 5,320.75 is: 7,979.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,009.05 : 25,509.93 = 5,320.75 : x
  2. Step 2: Convert to fraction form
    17,009.05/25,509.93 = 5,320.75/x
  3. Step 3: Cross multiply
    17,009.05x = 25,509.93 × 5,320.75
  4. Step 4: Simplify right side
    17,009.05x = 135,731,960.05
  5. Step 5: Solve for x
    x = 135,731,960.05/17,009.05
  6. Step 6: Final answer
    x = 7,979.98

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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.