Home / 15,605.22-21,546.46-9,645.06

Finding the Fourth Proportional to 15,605.22, 21,546.46 and 9,645.06

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Solution

The fourth proportional to 15,605.22, 21,546.46 and 9,645.06 is: 13,317.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,605.22 : 21,546.46 = 9,645.06 : x
  2. Step 2: Convert to fraction form
    15,605.22/21,546.46 = 9,645.06/x
  3. Step 3: Cross multiply
    15,605.22x = 21,546.46 × 9,645.06
  4. Step 4: Simplify right side
    15,605.22x = 207,816,899.49
  5. Step 5: Solve for x
    x = 207,816,899.49/15,605.22
  6. Step 6: Final answer
    x = 13,317.14

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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.