Home / 13,997.76-20,944.80-10,302.72

Finding the Fourth Proportional to 13,997.76, 20,944.80 and 10,302.72

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Solution

The fourth proportional to 13,997.76, 20,944.80 and 10,302.72 is: 15,415.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,997.76 : 20,944.80 = 10,302.72 : x
  2. Step 2: Convert to fraction form
    13,997.76/20,944.80 = 10,302.72/x
  3. Step 3: Cross multiply
    13,997.76x = 20,944.80 × 10,302.72
  4. Step 4: Simplify right side
    13,997.76x = 215,788,409.86
  5. Step 5: Solve for x
    x = 215,788,409.86/13,997.76
  6. Step 6: Final answer
    x = 15,415.92

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1.5x scale

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.