Home / 13,869.36-19,116.68-9,830.97

Finding the Fourth Proportional to 13,869.36, 19,116.68 and 9,830.97

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Solution

The fourth proportional to 13,869.36, 19,116.68 and 9,830.97 is: 13,550.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,869.36 : 19,116.68 = 9,830.97 : x
  2. Step 2: Convert to fraction form
    13,869.36/19,116.68 = 9,830.97/x
  3. Step 3: Cross multiply
    13,869.36x = 19,116.68 × 9,830.97
  4. Step 4: Simplify right side
    13,869.36x = 187,935,458.42
  5. Step 5: Solve for x
    x = 187,935,458.42/13,869.36
  6. Step 6: Final answer
    x = 13,550.41

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1.5x scale

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.