Home / 12,084.04-16,668.48-7,892.20

Finding the Fourth Proportional to 12,084.04, 16,668.48 and 7,892.20

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Solution

The fourth proportional to 12,084.04, 16,668.48 and 7,892.20 is: 10,886.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,084.04 : 16,668.48 = 7,892.20 : x
  2. Step 2: Convert to fraction form
    12,084.04/16,668.48 = 7,892.20/x
  3. Step 3: Cross multiply
    12,084.04x = 16,668.48 × 7,892.20
  4. Step 4: Simplify right side
    12,084.04x = 131,550,977.86
  5. Step 5: Solve for x
    x = 131,550,977.86/12,084.04
  6. Step 6: Final answer
    x = 10,886.34

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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.