Home / 17,909.43-26,857.13-10,515.75

Finding the Fourth Proportional to 17,909.43, 26,857.13 and 10,515.75

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Solution

The fourth proportional to 17,909.43, 26,857.13 and 10,515.75 is: 15,769.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,909.43 : 26,857.13 = 10,515.75 : x
  2. Step 2: Convert to fraction form
    17,909.43/26,857.13 = 10,515.75/x
  3. Step 3: Cross multiply
    17,909.43x = 26,857.13 × 10,515.75
  4. Step 4: Simplify right side
    17,909.43x = 282,422,812.22
  5. Step 5: Solve for x
    x = 282,422,812.22/17,909.43
  6. Step 6: Final answer
    x = 15,769.50

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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.