Home / 13,009.31-19,495.27-6,427.80

Finding the Fourth Proportional to 13,009.31, 19,495.27 and 6,427.80

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Solution

The fourth proportional to 13,009.31, 19,495.27 and 6,427.80 is: 9,632.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,009.31 : 19,495.27 = 6,427.80 : x
  2. Step 2: Convert to fraction form
    13,009.31/19,495.27 = 6,427.80/x
  3. Step 3: Cross multiply
    13,009.31x = 19,495.27 × 6,427.80
  4. Step 4: Simplify right side
    13,009.31x = 125,311,696.51
  5. Step 5: Solve for x
    x = 125,311,696.51/13,009.31
  6. Step 6: Final answer
    x = 9,632.47

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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.