Home / 18,857.54-28,289.95-6,379.59

Finding the Fourth Proportional to 18,857.54, 28,289.95 and 6,379.59

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Solution

The fourth proportional to 18,857.54, 28,289.95 and 6,379.59 is: 9,570.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,857.54 : 28,289.95 = 6,379.59 : x
  2. Step 2: Convert to fraction form
    18,857.54/28,289.95 = 6,379.59/x
  3. Step 3: Cross multiply
    18,857.54x = 28,289.95 × 6,379.59
  4. Step 4: Simplify right side
    18,857.54x = 180,478,266.17
  5. Step 5: Solve for x
    x = 180,478,266.17/18,857.54
  6. Step 6: Final answer
    x = 9,570.62

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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.