Home / 16,675.78-23,011.62-9,120.60

Finding the Fourth Proportional to 16,675.78, 23,011.62 and 9,120.60

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Solution

The fourth proportional to 16,675.78, 23,011.62 and 9,120.60 is: 12,585.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,675.78 : 23,011.62 = 9,120.60 : x
  2. Step 2: Convert to fraction form
    16,675.78/23,011.62 = 9,120.60/x
  3. Step 3: Cross multiply
    16,675.78x = 23,011.62 × 9,120.60
  4. Step 4: Simplify right side
    16,675.78x = 209,879,781.37
  5. Step 5: Solve for x
    x = 209,879,781.37/16,675.78
  6. Step 6: Final answer
    x = 12,585.90

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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.