Home / 18,790.90-28,177.55-10,895.67

Finding the Fourth Proportional to 18,790.90, 28,177.55 and 10,895.67

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Solution

The fourth proportional to 18,790.90, 28,177.55 and 10,895.67 is: 16,338.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,790.90 : 28,177.55 = 10,895.67 : x
  2. Step 2: Convert to fraction form
    18,790.90/28,177.55 = 10,895.67/x
  3. Step 3: Cross multiply
    18,790.90x = 28,177.55 × 10,895.67
  4. Step 4: Simplify right side
    18,790.90x = 307,013,145.32
  5. Step 5: Solve for x
    x = 307,013,145.32/18,790.90
  6. Step 6: Final answer
    x = 16,338.39

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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.