Home / 12,580.11-18,869.55-3,695.07

Finding the Fourth Proportional to 12,580.11, 18,869.55 and 3,695.07

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Solution

The fourth proportional to 12,580.11, 18,869.55 and 3,695.07 is: 5,542.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,580.11 : 18,869.55 = 3,695.07 : x
  2. Step 2: Convert to fraction form
    12,580.11/18,869.55 = 3,695.07/x
  3. Step 3: Cross multiply
    12,580.11x = 18,869.55 × 3,695.07
  4. Step 4: Simplify right side
    12,580.11x = 69,724,308.12
  5. Step 5: Solve for x
    x = 69,724,308.12/12,580.11
  6. Step 6: Final answer
    x = 5,542.42

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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.