Home / 18,292.80-27,437.76-5,145.60

Finding the Fourth Proportional to 18,292.80, 27,437.76 and 5,145.60

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Solution

The fourth proportional to 18,292.80, 27,437.76 and 5,145.60 is: 7,717.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,292.80 : 27,437.76 = 5,145.60 : x
  2. Step 2: Convert to fraction form
    18,292.80/27,437.76 = 5,145.60/x
  3. Step 3: Cross multiply
    18,292.80x = 27,437.76 × 5,145.60
  4. Step 4: Simplify right side
    18,292.80x = 141,183,737.86
  5. Step 5: Solve for x
    x = 141,183,737.86/18,292.80
  6. Step 6: Final answer
    x = 7,717.99

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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.