Home / 13,811.73-19,071.44-11,259.90

Finding the Fourth Proportional to 13,811.73, 19,071.44 and 11,259.90

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Solution

The fourth proportional to 13,811.73, 19,071.44 and 11,259.90 is: 15,547.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,811.73 : 19,071.44 = 11,259.90 : x
  2. Step 2: Convert to fraction form
    13,811.73/19,071.44 = 11,259.90/x
  3. Step 3: Cross multiply
    13,811.73x = 19,071.44 × 11,259.90
  4. Step 4: Simplify right side
    13,811.73x = 214,742,507.26
  5. Step 5: Solve for x
    x = 214,742,507.26/13,811.73
  6. Step 6: Final answer
    x = 15,547.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.