Home / 18,475.21-27,715.17-8,477.53

Finding the Fourth Proportional to 18,475.21, 27,715.17 and 8,477.53

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Solution

The fourth proportional to 18,475.21, 27,715.17 and 8,477.53 is: 12,717.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,475.21 : 27,715.17 = 8,477.53 : x
  2. Step 2: Convert to fraction form
    18,475.21/27,715.17 = 8,477.53/x
  3. Step 3: Cross multiply
    18,475.21x = 27,715.17 × 8,477.53
  4. Step 4: Simplify right side
    18,475.21x = 234,956,185.13
  5. Step 5: Solve for x
    x = 234,956,185.13/18,475.21
  6. Step 6: Final answer
    x = 12,717.38

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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.