Home / 15,504.66-21,396.65-11,617.18

Finding the Fourth Proportional to 15,504.66, 21,396.65 and 11,617.18

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Solution

The fourth proportional to 15,504.66, 21,396.65 and 11,617.18 is: 16,031.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,504.66 : 21,396.65 = 11,617.18 : x
  2. Step 2: Convert to fraction form
    15,504.66/21,396.65 = 11,617.18/x
  3. Step 3: Cross multiply
    15,504.66x = 21,396.65 × 11,617.18
  4. Step 4: Simplify right side
    15,504.66x = 248,568,715.72
  5. Step 5: Solve for x
    x = 248,568,715.72/15,504.66
  6. Step 6: Final answer
    x = 16,031.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.