Home / 13,322.76-19,985.36-3,962.70

Finding the Fourth Proportional to 13,322.76, 19,985.36 and 3,962.70

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Solution

The fourth proportional to 13,322.76, 19,985.36 and 3,962.70 is: 5,944.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,322.76 : 19,985.36 = 3,962.70 : x
  2. Step 2: Convert to fraction form
    13,322.76/19,985.36 = 3,962.70/x
  3. Step 3: Cross multiply
    13,322.76x = 19,985.36 × 3,962.70
  4. Step 4: Simplify right side
    13,322.76x = 79,196,041.20
  5. Step 5: Solve for x
    x = 79,196,041.20/13,322.76
  6. Step 6: Final answer
    x = 5,944.42

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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.