Home / 17,928.36-26,892.54-4,780.78

Finding the Fourth Proportional to 17,928.36, 26,892.54 and 4,780.78

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Solution

The fourth proportional to 17,928.36, 26,892.54 and 4,780.78 is: 7,171.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,928.36 : 26,892.54 = 4,780.78 : x
  2. Step 2: Convert to fraction form
    17,928.36/26,892.54 = 4,780.78/x
  3. Step 3: Cross multiply
    17,928.36x = 26,892.54 × 4,780.78
  4. Step 4: Simplify right side
    17,928.36x = 128,567,250.15
  5. Step 5: Solve for x
    x = 128,567,250.15/17,928.36
  6. Step 6: Final answer
    x = 7,171.17

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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.