Home / 13,909.29-20,864.78-4,550.30

Finding the Fourth Proportional to 13,909.29, 20,864.78 and 4,550.30

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Solution

The fourth proportional to 13,909.29, 20,864.78 and 4,550.30 is: 6,825.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909.29 : 20,864.78 = 4,550.30 : x
  2. Step 2: Convert to fraction form
    13,909.29/20,864.78 = 4,550.30/x
  3. Step 3: Cross multiply
    13,909.29x = 20,864.78 × 4,550.30
  4. Step 4: Simplify right side
    13,909.29x = 94,940,904.11
  5. Step 5: Solve for x
    x = 94,940,904.11/13,909.29
  6. Step 6: Final answer
    x = 6,825.72

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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.