Home / 13,565.08-18,711.52-8,965.85

Finding the Fourth Proportional to 13,565.08, 18,711.52 and 8,965.85

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Solution

The fourth proportional to 13,565.08, 18,711.52 and 8,965.85 is: 12,367.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565.08 : 18,711.52 = 8,965.85 : x
  2. Step 2: Convert to fraction form
    13,565.08/18,711.52 = 8,965.85/x
  3. Step 3: Cross multiply
    13,565.08x = 18,711.52 × 8,965.85
  4. Step 4: Simplify right side
    13,565.08x = 167,764,588.03
  5. Step 5: Solve for x
    x = 167,764,588.03/13,565.08
  6. Step 6: Final answer
    x = 12,367.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.