Home / 13,635.71-20,451.28-3,775.98

Finding the Fourth Proportional to 13,635.71, 20,451.28 and 3,775.98

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Solution

The fourth proportional to 13,635.71, 20,451.28 and 3,775.98 is: 5,663.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,635.71 : 20,451.28 = 3,775.98 : x
  2. Step 2: Convert to fraction form
    13,635.71/20,451.28 = 3,775.98/x
  3. Step 3: Cross multiply
    13,635.71x = 20,451.28 × 3,775.98
  4. Step 4: Simplify right side
    13,635.71x = 77,223,624.25
  5. Step 5: Solve for x
    x = 77,223,624.25/13,635.71
  6. Step 6: Final answer
    x = 5,663.34

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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.