Home / 19,805.36-29,687.14-7,317.38

Finding the Fourth Proportional to 19,805.36, 29,687.14 and 7,317.38

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Solution

The fourth proportional to 19,805.36, 29,687.14 and 7,317.38 is: 10,968.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,805.36 : 29,687.14 = 7,317.38 : x
  2. Step 2: Convert to fraction form
    19,805.36/29,687.14 = 7,317.38/x
  3. Step 3: Cross multiply
    19,805.36x = 29,687.14 × 7,317.38
  4. Step 4: Simplify right side
    19,805.36x = 217,232,047.91
  5. Step 5: Solve for x
    x = 217,232,047.91/19,805.36
  6. Step 6: Final answer
    x = 10,968.35

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1.5x scale

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.