Home / 17,768.40-26,652.60-4,620.78

Finding the Fourth Proportional to 17,768.40, 26,652.60 and 4,620.78

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Solution

The fourth proportional to 17,768.40, 26,652.60 and 4,620.78 is: 6,931.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,768.40 : 26,652.60 = 4,620.78 : x
  2. Step 2: Convert to fraction form
    17,768.40/26,652.60 = 4,620.78/x
  3. Step 3: Cross multiply
    17,768.40x = 26,652.60 × 4,620.78
  4. Step 4: Simplify right side
    17,768.40x = 123,155,801.03
  5. Step 5: Solve for x
    x = 123,155,801.03/17,768.40
  6. Step 6: Final answer
    x = 6,931.17

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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.