Home / 19,643.51-29,473.07-7,164.35

Finding the Fourth Proportional to 19,643.51, 29,473.07 and 7,164.35

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Solution

The fourth proportional to 19,643.51, 29,473.07 and 7,164.35 is: 10,749.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,643.51 : 29,473.07 = 7,164.35 : x
  2. Step 2: Convert to fraction form
    19,643.51/29,473.07 = 7,164.35/x
  3. Step 3: Cross multiply
    19,643.51x = 29,473.07 × 7,164.35
  4. Step 4: Simplify right side
    19,643.51x = 211,155,316.39
  5. Step 5: Solve for x
    x = 211,155,316.39/19,643.51
  6. Step 6: Final answer
    x = 10,749.37

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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.