Home / 16,780.39-25,154.96-5,679.36

Finding the Fourth Proportional to 16,780.39, 25,154.96 and 5,679.36

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Solution

The fourth proportional to 16,780.39, 25,154.96 and 5,679.36 is: 8,513.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,780.39 : 25,154.96 = 5,679.36 : x
  2. Step 2: Convert to fraction form
    16,780.39/25,154.96 = 5,679.36/x
  3. Step 3: Cross multiply
    16,780.39x = 25,154.96 × 5,679.36
  4. Step 4: Simplify right side
    16,780.39x = 142,864,045.23
  5. Step 5: Solve for x
    x = 142,864,045.23/16,780.39
  6. Step 6: Final answer
    x = 8,513.75

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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.