Home / 15,231.01-21,019.61-9,183.18

Finding the Fourth Proportional to 15,231.01, 21,019.61 and 9,183.18

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Solution

The fourth proportional to 15,231.01, 21,019.61 and 9,183.18 is: 12,673.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,231.01 : 21,019.61 = 9,183.18 : x
  2. Step 2: Convert to fraction form
    15,231.01/21,019.61 = 9,183.18/x
  3. Step 3: Cross multiply
    15,231.01x = 21,019.61 × 9,183.18
  4. Step 4: Simplify right side
    15,231.01x = 193,026,862.16
  5. Step 5: Solve for x
    x = 193,026,862.16/15,231.01
  6. Step 6: Final answer
    x = 12,673.28

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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.