Home / 12,167.11-18,242.82-4,772.32

Finding the Fourth Proportional to 12,167.11, 18,242.82 and 4,772.32

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Solution

The fourth proportional to 12,167.11, 18,242.82 and 4,772.32 is: 7,155.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,167.11 : 18,242.82 = 4,772.32 : x
  2. Step 2: Convert to fraction form
    12,167.11/18,242.82 = 4,772.32/x
  3. Step 3: Cross multiply
    12,167.11x = 18,242.82 × 4,772.32
  4. Step 4: Simplify right side
    12,167.11x = 87,060,529.14
  5. Step 5: Solve for x
    x = 87,060,529.14/12,167.11
  6. Step 6: Final answer
    x = 7,155.40

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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.