Home / 16,675.30-23,011.90-9,121.65

Finding the Fourth Proportional to 16,675.30, 23,011.90 and 9,121.65

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Solution

The fourth proportional to 16,675.30, 23,011.90 and 9,121.65 is: 12,587.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,675.30 : 23,011.90 = 9,121.65 : x
  2. Step 2: Convert to fraction form
    16,675.30/23,011.90 = 9,121.65/x
  3. Step 3: Cross multiply
    16,675.30x = 23,011.90 × 9,121.65
  4. Step 4: Simplify right side
    16,675.30x = 209,906,497.64
  5. Step 5: Solve for x
    x = 209,906,497.64/16,675.30
  6. Step 6: Final answer
    x = 12,587.87

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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.