Home / 18,856.67-28,290.26-5,709.15

Finding the Fourth Proportional to 18,856.67, 28,290.26 and 5,709.15

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Solution

The fourth proportional to 18,856.67, 28,290.26 and 5,709.15 is: 8,565.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,856.67 : 28,290.26 = 5,709.15 : x
  2. Step 2: Convert to fraction form
    18,856.67/28,290.26 = 5,709.15/x
  3. Step 3: Cross multiply
    18,856.67x = 28,290.26 × 5,709.15
  4. Step 4: Simplify right side
    18,856.67x = 161,513,352.15
  5. Step 5: Solve for x
    x = 161,513,352.15/18,856.67
  6. Step 6: Final answer
    x = 8,565.32

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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.