Home / 15,897.72-21,938.90-9,183.32

Finding the Fourth Proportional to 15,897.72, 21,938.90 and 9,183.32

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Solution

The fourth proportional to 15,897.72, 21,938.90 and 9,183.32 is: 12,673.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,897.72 : 21,938.90 = 9,183.32 : x
  2. Step 2: Convert to fraction form
    15,897.72/21,938.90 = 9,183.32/x
  3. Step 3: Cross multiply
    15,897.72x = 21,938.90 × 9,183.32
  4. Step 4: Simplify right side
    15,897.72x = 201,472,040.87
  5. Step 5: Solve for x
    x = 201,472,040.87/15,897.72
  6. Step 6: Final answer
    x = 12,673.02

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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.