Home / 13,130.82-19,695.80-3,270.08

Finding the Fourth Proportional to 13,130.82, 19,695.80 and 3,270.08

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Solution

The fourth proportional to 13,130.82, 19,695.80 and 3,270.08 is: 4,905.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130.82 : 19,695.80 = 3,270.08 : x
  2. Step 2: Convert to fraction form
    13,130.82/19,695.80 = 3,270.08/x
  3. Step 3: Cross multiply
    13,130.82x = 19,695.80 × 3,270.08
  4. Step 4: Simplify right side
    13,130.82x = 64,406,841.66
  5. Step 5: Solve for x
    x = 64,406,841.66/13,130.82
  6. Step 6: Final answer
    x = 4,905.01

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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.