Home / 16,289.10-22,478.85-9,215.37

Finding the Fourth Proportional to 16,289.10, 22,478.85 and 9,215.37

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Solution

The fourth proportional to 16,289.10, 22,478.85 and 9,215.37 is: 12,717.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,289.10 : 22,478.85 = 9,215.37 : x
  2. Step 2: Convert to fraction form
    16,289.10/22,478.85 = 9,215.37/x
  3. Step 3: Cross multiply
    16,289.10x = 22,478.85 × 9,215.37
  4. Step 4: Simplify right side
    16,289.10x = 207,150,919.92
  5. Step 5: Solve for x
    x = 207,150,919.92/16,289.10
  6. Step 6: Final answer
    x = 12,717.15

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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.