Home / 13,997.37-19,316.85-7,709.88

Finding the Fourth Proportional to 13,997.37, 19,316.85 and 7,709.88

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Solution

The fourth proportional to 13,997.37, 19,316.85 and 7,709.88 is: 10,639.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,997.37 : 19,316.85 = 7,709.88 : x
  2. Step 2: Convert to fraction form
    13,997.37/19,316.85 = 7,709.88/x
  3. Step 3: Cross multiply
    13,997.37x = 19,316.85 × 7,709.88
  4. Step 4: Simplify right side
    13,997.37x = 148,930,595.48
  5. Step 5: Solve for x
    x = 148,930,595.48/13,997.37
  6. Step 6: Final answer
    x = 10,639.90

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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.