Home / 19,966.90-27,553.32-12,007.60

Finding the Fourth Proportional to 19,966.90, 27,553.32 and 12,007.60

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Solution

The fourth proportional to 19,966.90, 27,553.32 and 12,007.60 is: 16,569.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,966.90 : 27,553.32 = 12,007.60 : x
  2. Step 2: Convert to fraction form
    19,966.90/27,553.32 = 12,007.60/x
  3. Step 3: Cross multiply
    19,966.90x = 27,553.32 × 12,007.60
  4. Step 4: Simplify right side
    19,966.90x = 330,849,245.23
  5. Step 5: Solve for x
    x = 330,849,245.23/19,966.90
  6. Step 6: Final answer
    x = 16,569.89

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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.