Home / 13,070.20-19,605.21-4,305.82

Finding the Fourth Proportional to 13,070.20, 19,605.21 and 4,305.82

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Solution

The fourth proportional to 13,070.20, 19,605.21 and 4,305.82 is: 6,458.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,070.20 : 19,605.21 = 4,305.82 : x
  2. Step 2: Convert to fraction form
    13,070.20/19,605.21 = 4,305.82/x
  3. Step 3: Cross multiply
    13,070.20x = 19,605.21 × 4,305.82
  4. Step 4: Simplify right side
    13,070.20x = 84,416,505.32
  5. Step 5: Solve for x
    x = 84,416,505.32/13,070.20
  6. Step 6: Final answer
    x = 6,458.70

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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.