Home / 16,513.20-22,788.18-8,959.68

Finding the Fourth Proportional to 16,513.20, 22,788.18 and 8,959.68

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Solution

The fourth proportional to 16,513.20, 22,788.18 and 8,959.68 is: 12,364.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,513.20 : 22,788.18 = 8,959.68 : x
  2. Step 2: Convert to fraction form
    16,513.20/22,788.18 = 8,959.68/x
  3. Step 3: Cross multiply
    16,513.20x = 22,788.18 × 8,959.68
  4. Step 4: Simplify right side
    16,513.20x = 204,174,800.58
  5. Step 5: Solve for x
    x = 204,174,800.58/16,513.20
  6. Step 6: Final answer
    x = 12,364.34

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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.