Home / 15,104.22-20,792.07-13,102.98

Finding the Fourth Proportional to 15,104.22, 20,792.07 and 13,102.98

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Solution

The fourth proportional to 15,104.22, 20,792.07 and 13,102.98 is: 18,037.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,104.22 : 20,792.07 = 13,102.98 : x
  2. Step 2: Convert to fraction form
    15,104.22/20,792.07 = 13,102.98/x
  3. Step 3: Cross multiply
    15,104.22x = 20,792.07 × 13,102.98
  4. Step 4: Simplify right side
    15,104.22x = 272,438,077.37
  5. Step 5: Solve for x
    x = 272,438,077.37/15,104.22
  6. Step 6: Final answer
    x = 18,037.22

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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.