Home / 13,127.40-19,673.28-6,539.13

Finding the Fourth Proportional to 13,127.40, 19,673.28 and 6,539.13

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Solution

The fourth proportional to 13,127.40, 19,673.28 and 6,539.13 is: 9,799.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,127.40 : 19,673.28 = 6,539.13 : x
  2. Step 2: Convert to fraction form
    13,127.40/19,673.28 = 6,539.13/x
  3. Step 3: Cross multiply
    13,127.40x = 19,673.28 × 6,539.13
  4. Step 4: Simplify right side
    13,127.40x = 128,646,135.45
  5. Step 5: Solve for x
    x = 128,646,135.45/13,127.40
  6. Step 6: Final answer
    x = 9,799.82

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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.