Home / 13,915.48-20,866.98-10,003.52

Finding the Fourth Proportional to 13,915.48, 20,866.98 and 10,003.52

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Solution

The fourth proportional to 13,915.48, 20,866.98 and 10,003.52 is: 15,000.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,915.48 : 20,866.98 = 10,003.52 : x
  2. Step 2: Convert to fraction form
    13,915.48/20,866.98 = 10,003.52/x
  3. Step 3: Cross multiply
    13,915.48x = 20,866.98 × 10,003.52
  4. Step 4: Simplify right side
    13,915.48x = 208,743,251.77
  5. Step 5: Solve for x
    x = 208,743,251.77/13,915.48
  6. Step 6: Final answer
    x = 15,000.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.