Home / 16,289.96-22,479.92-9,120.12

Finding the Fourth Proportional to 16,289.96, 22,479.92 and 9,120.12

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Solution

The fourth proportional to 16,289.96, 22,479.92 and 9,120.12 is: 12,585.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,289.96 : 22,479.92 = 9,120.12 : x
  2. Step 2: Convert to fraction form
    16,289.96/22,479.92 = 9,120.12/x
  3. Step 3: Cross multiply
    16,289.96x = 22,479.92 × 9,120.12
  4. Step 4: Simplify right side
    16,289.96x = 205,019,567.99
  5. Step 5: Solve for x
    x = 205,019,567.99/16,289.96
  6. Step 6: Final answer
    x = 12,585.64

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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.