Home / 18,777.21-28,165.74-4,737.27

Finding the Fourth Proportional to 18,777.21, 28,165.74 and 4,737.27

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Solution

The fourth proportional to 18,777.21, 28,165.74 and 4,737.27 is: 7,105.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,777.21 : 28,165.74 = 4,737.27 : x
  2. Step 2: Convert to fraction form
    18,777.21/28,165.74 = 4,737.27/x
  3. Step 3: Cross multiply
    18,777.21x = 28,165.74 × 4,737.27
  4. Step 4: Simplify right side
    18,777.21x = 133,428,715.13
  5. Step 5: Solve for x
    x = 133,428,715.13/18,777.21
  6. Step 6: Final answer
    x = 7,105.89

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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.