Home / 13,305.30-19,962.66-5,909.10

Finding the Fourth Proportional to 13,305.30, 19,962.66 and 5,909.10

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Solution

The fourth proportional to 13,305.30, 19,962.66 and 5,909.10 is: 8,865.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.30 : 19,962.66 = 5,909.10 : x
  2. Step 2: Convert to fraction form
    13,305.30/19,962.66 = 5,909.10/x
  3. Step 3: Cross multiply
    13,305.30x = 19,962.66 × 5,909.10
  4. Step 4: Simplify right side
    13,305.30x = 117,961,354.21
  5. Step 5: Solve for x
    x = 117,961,354.21/13,305.30
  6. Step 6: Final answer
    x = 8,865.74

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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.