Home / 16,980.60-25,470.90-11,978.04

Finding the Fourth Proportional to 16,980.60, 25,470.90 and 11,978.04

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Solution

The fourth proportional to 16,980.60, 25,470.90 and 11,978.04 is: 17,967.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,980.60 : 25,470.90 = 11,978.04 : x
  2. Step 2: Convert to fraction form
    16,980.60/25,470.90 = 11,978.04/x
  3. Step 3: Cross multiply
    16,980.60x = 25,470.90 × 11,978.04
  4. Step 4: Simplify right side
    16,980.60x = 305,091,459.04
  5. Step 5: Solve for x
    x = 305,091,459.04/16,980.60
  6. Step 6: Final answer
    x = 17,967.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.