Home / 17,769.48-26,659.70-12,783.12

Finding the Fourth Proportional to 17,769.48, 26,659.70 and 12,783.12

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Solution

The fourth proportional to 17,769.48, 26,659.70 and 12,783.12 is: 19,178.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,769.48 : 26,659.70 = 12,783.12 : x
  2. Step 2: Convert to fraction form
    17,769.48/26,659.70 = 12,783.12/x
  3. Step 3: Cross multiply
    17,769.48x = 26,659.70 × 12,783.12
  4. Step 4: Simplify right side
    17,769.48x = 340,794,080.35
  5. Step 5: Solve for x
    x = 340,794,080.35/17,769.48
  6. Step 6: Final answer
    x = 19,178.62

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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.