Home / 15,894.31-21,938.13-9,183.85

Finding the Fourth Proportional to 15,894.31, 21,938.13 and 9,183.85

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Solution

The fourth proportional to 15,894.31, 21,938.13 and 9,183.85 is: 12,676.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,894.31 : 21,938.13 = 9,183.85 : x
  2. Step 2: Convert to fraction form
    15,894.31/21,938.13 = 9,183.85/x
  3. Step 3: Cross multiply
    15,894.31x = 21,938.13 × 9,183.85
  4. Step 4: Simplify right side
    15,894.31x = 201,476,495.20
  5. Step 5: Solve for x
    x = 201,476,495.20/15,894.31
  6. Step 6: Final answer
    x = 12,676.01

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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.