Home / 21,146.24-29,182.04-11,715.36

Finding the Fourth Proportional to 21,146.24, 29,182.04 and 11,715.36

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Solution

The fourth proportional to 21,146.24, 29,182.04 and 11,715.36 is: 16,167.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,146.24 : 29,182.04 = 11,715.36 : x
  2. Step 2: Convert to fraction form
    21,146.24/29,182.04 = 11,715.36/x
  3. Step 3: Cross multiply
    21,146.24x = 29,182.04 × 11,715.36
  4. Step 4: Simplify right side
    21,146.24x = 341,878,104.13
  5. Step 5: Solve for x
    x = 341,878,104.13/21,146.24
  6. Step 6: Final answer
    x = 16,167.32

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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.