Home / 16,209.10-22,368.18-9,135.64

Finding the Fourth Proportional to 16,209.10, 22,368.18 and 9,135.64

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Solution

The fourth proportional to 16,209.10, 22,368.18 and 9,135.64 is: 12,606.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,209.10 : 22,368.18 = 9,135.64 : x
  2. Step 2: Convert to fraction form
    16,209.10/22,368.18 = 9,135.64/x
  3. Step 3: Cross multiply
    16,209.10x = 22,368.18 × 9,135.64
  4. Step 4: Simplify right side
    16,209.10x = 204,347,639.94
  5. Step 5: Solve for x
    x = 204,347,639.94/16,209.10
  6. Step 6: Final answer
    x = 12,606.97

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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.