Home / 15,868.75-21,893.88-10,564.42

Finding the Fourth Proportional to 15,868.75, 21,893.88 and 10,564.42

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Solution

The fourth proportional to 15,868.75, 21,893.88 and 10,564.42 is: 14,575.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,868.75 : 21,893.88 = 10,564.42 : x
  2. Step 2: Convert to fraction form
    15,868.75/21,893.88 = 10,564.42/x
  3. Step 3: Cross multiply
    15,868.75x = 21,893.88 × 10,564.42
  4. Step 4: Simplify right side
    15,868.75x = 231,296,143.75
  5. Step 5: Solve for x
    x = 231,296,143.75/15,868.75
  6. Step 6: Final answer
    x = 14,575.57

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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.