Home / 15,324.09-21,128.84-11,068.35

Finding the Fourth Proportional to 15,324.09, 21,128.84 and 11,068.35

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Solution

The fourth proportional to 15,324.09, 21,128.84 and 11,068.35 is: 15,261.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,324.09 : 21,128.84 = 11,068.35 : x
  2. Step 2: Convert to fraction form
    15,324.09/21,128.84 = 11,068.35/x
  3. Step 3: Cross multiply
    15,324.09x = 21,128.84 × 11,068.35
  4. Step 4: Simplify right side
    15,324.09x = 233,861,396.21
  5. Step 5: Solve for x
    x = 233,861,396.21/15,324.09
  6. Step 6: Final answer
    x = 15,261.03

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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.