Home / 14,471.33-19,989.18-9,987.17

Finding the Fourth Proportional to 14,471.33, 19,989.18 and 9,987.17

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Solution

The fourth proportional to 14,471.33, 19,989.18 and 9,987.17 is: 13,795.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,471.33 : 19,989.18 = 9,987.17 : x
  2. Step 2: Convert to fraction form
    14,471.33/19,989.18 = 9,987.17/x
  3. Step 3: Cross multiply
    14,471.33x = 19,989.18 × 9,987.17
  4. Step 4: Simplify right side
    14,471.33x = 199,635,238.87
  5. Step 5: Solve for x
    x = 199,635,238.87/14,471.33
  6. Step 6: Final answer
    x = 13,795.23

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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.