Home / 15,629.53-21,567.90-8,554.57

Finding the Fourth Proportional to 15,629.53, 21,567.90 and 8,554.57

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Solution

The fourth proportional to 15,629.53, 21,567.90 and 8,554.57 is: 11,804.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,629.53 : 21,567.90 = 8,554.57 : x
  2. Step 2: Convert to fraction form
    15,629.53/21,567.90 = 8,554.57/x
  3. Step 3: Cross multiply
    15,629.53x = 21,567.90 × 8,554.57
  4. Step 4: Simplify right side
    15,629.53x = 184,504,110.30
  5. Step 5: Solve for x
    x = 184,504,110.30/15,629.53
  6. Step 6: Final answer
    x = 11,804.84

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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.