Home / 18,830.64-28,246.12-4,790.68

Finding the Fourth Proportional to 18,830.64, 28,246.12 and 4,790.68

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Solution

The fourth proportional to 18,830.64, 28,246.12 and 4,790.68 is: 7,186.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,830.64 : 28,246.12 = 4,790.68 : x
  2. Step 2: Convert to fraction form
    18,830.64/28,246.12 = 4,790.68/x
  3. Step 3: Cross multiply
    18,830.64x = 28,246.12 × 4,790.68
  4. Step 4: Simplify right side
    18,830.64x = 135,318,039.57
  5. Step 5: Solve for x
    x = 135,318,039.57/18,830.64
  6. Step 6: Final answer
    x = 7,186.06

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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.