Home / 13,090.86-19,631.88-4,323.78

Finding the Fourth Proportional to 13,090.86, 19,631.88 and 4,323.78

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Solution

The fourth proportional to 13,090.86, 19,631.88 and 4,323.78 is: 6,484.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,090.86 : 19,631.88 = 4,323.78 : x
  2. Step 2: Convert to fraction form
    13,090.86/19,631.88 = 4,323.78/x
  3. Step 3: Cross multiply
    13,090.86x = 19,631.88 × 4,323.78
  4. Step 4: Simplify right side
    13,090.86x = 84,883,930.11
  5. Step 5: Solve for x
    x = 84,883,930.11/13,090.86
  6. Step 6: Final answer
    x = 6,484.21

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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.