Home / 18,979.14-28,465.79-6,496.30

Finding the Fourth Proportional to 18,979.14, 28,465.79 and 6,496.30

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Solution

The fourth proportional to 18,979.14, 28,465.79 and 6,496.30 is: 9,743.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,979.14 : 28,465.79 = 6,496.30 : x
  2. Step 2: Convert to fraction form
    18,979.14/28,465.79 = 6,496.30/x
  3. Step 3: Cross multiply
    18,979.14x = 28,465.79 × 6,496.30
  4. Step 4: Simplify right side
    18,979.14x = 184,922,279.10
  5. Step 5: Solve for x
    x = 184,922,279.10/18,979.14
  6. Step 6: Final answer
    x = 9,743.45

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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.