Home / 18,306.19-27,455.64-5,155.03

Finding the Fourth Proportional to 18,306.19, 27,455.64 and 5,155.03

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Solution

The fourth proportional to 18,306.19, 27,455.64 and 5,155.03 is: 7,731.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,306.19 : 27,455.64 = 5,155.03 : x
  2. Step 2: Convert to fraction form
    18,306.19/27,455.64 = 5,155.03/x
  3. Step 3: Cross multiply
    18,306.19x = 27,455.64 × 5,155.03
  4. Step 4: Simplify right side
    18,306.19x = 141,534,647.87
  5. Step 5: Solve for x
    x = 141,534,647.87/18,306.19
  6. Step 6: Final answer
    x = 7,731.52

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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.