Home / 11,515.21-17,272.75-9,950.45

Finding the Fourth Proportional to 11,515.21, 17,272.75 and 9,950.45

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Solution

The fourth proportional to 11,515.21, 17,272.75 and 9,950.45 is: 14,925.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,515.21 : 17,272.75 = 9,950.45 : x
  2. Step 2: Convert to fraction form
    11,515.21/17,272.75 = 9,950.45/x
  3. Step 3: Cross multiply
    11,515.21x = 17,272.75 × 9,950.45
  4. Step 4: Simplify right side
    11,515.21x = 171,871,585.49
  5. Step 5: Solve for x
    x = 171,871,585.49/11,515.21
  6. Step 6: Final answer
    x = 14,925.62

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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.