Home / 17,909.28-26,836.56-7,515.36

Finding the Fourth Proportional to 17,909.28, 26,836.56 and 7,515.36

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Solution

The fourth proportional to 17,909.28, 26,836.56 and 7,515.36 is: 11,261.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,909.28 : 26,836.56 = 7,515.36 : x
  2. Step 2: Convert to fraction form
    17,909.28/26,836.56 = 7,515.36/x
  3. Step 3: Cross multiply
    17,909.28x = 26,836.56 × 7,515.36
  4. Step 4: Simplify right side
    17,909.28x = 201,686,409.56
  5. Step 5: Solve for x
    x = 201,686,409.56/17,909.28
  6. Step 6: Final answer
    x = 11,261.56

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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.