Home / 15,441.26-21,324.06-13,190.00

Finding the Fourth Proportional to 15,441.26, 21,324.06 and 13,190.00

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Solution

The fourth proportional to 15,441.26, 21,324.06 and 13,190.00 is: 18,215.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,441.26 : 21,324.06 = 13,190.00 : x
  2. Step 2: Convert to fraction form
    15,441.26/21,324.06 = 13,190.00/x
  3. Step 3: Cross multiply
    15,441.26x = 21,324.06 × 13,190.00
  4. Step 4: Simplify right side
    15,441.26x = 281,264,244.78
  5. Step 5: Solve for x
    x = 281,264,244.78/15,441.26
  6. Step 6: Final answer
    x = 18,215.12

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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.