Home / 19,869.16-29,811.90-9,474.28

Finding the Fourth Proportional to 19,869.16, 29,811.90 and 9,474.28

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Solution

The fourth proportional to 19,869.16, 29,811.90 and 9,474.28 is: 14,215.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,869.16 : 29,811.90 = 9,474.28 : x
  2. Step 2: Convert to fraction form
    19,869.16/29,811.90 = 9,474.28/x
  3. Step 3: Cross multiply
    19,869.16x = 29,811.90 × 9,474.28
  4. Step 4: Simplify right side
    19,869.16x = 282,446,287.93
  5. Step 5: Solve for x
    x = 282,446,287.93/19,869.16
  6. Step 6: Final answer
    x = 14,215.31

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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.