Home / 26,782.59-40,157.68-11,988.75

Finding the Fourth Proportional to 26,782.59, 40,157.68 and 11,988.75

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Solution

The fourth proportional to 26,782.59, 40,157.68 and 11,988.75 is: 17,975.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,782.59 : 40,157.68 = 11,988.75 : x
  2. Step 2: Convert to fraction form
    26,782.59/40,157.68 = 11,988.75/x
  3. Step 3: Cross multiply
    26,782.59x = 40,157.68 × 11,988.75
  4. Step 4: Simplify right side
    26,782.59x = 481,440,386.10
  5. Step 5: Solve for x
    x = 481,440,386.10/26,782.59
  6. Step 6: Final answer
    x = 17,975.87

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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.