Home / 15,735.08-21,712.50-9,361.86

Finding the Fourth Proportional to 15,735.08, 21,712.50 and 9,361.86

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Solution

The fourth proportional to 15,735.08, 21,712.50 and 9,361.86 is: 12,918.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,735.08 : 21,712.50 = 9,361.86 : x
  2. Step 2: Convert to fraction form
    15,735.08/21,712.50 = 9,361.86/x
  3. Step 3: Cross multiply
    15,735.08x = 21,712.50 × 9,361.86
  4. Step 4: Simplify right side
    15,735.08x = 203,269,385.25
  5. Step 5: Solve for x
    x = 203,269,385.25/15,735.08
  6. Step 6: Final answer
    x = 12,918.23

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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.