Home / 13,869.12-19,140.69-7,582.44

Finding the Fourth Proportional to 13,869.12, 19,140.69 and 7,582.44

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Solution

The fourth proportional to 13,869.12, 19,140.69 and 7,582.44 is: 10,464.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,869.12 : 19,140.69 = 7,582.44 : x
  2. Step 2: Convert to fraction form
    13,869.12/19,140.69 = 7,582.44/x
  3. Step 3: Cross multiply
    13,869.12x = 19,140.69 × 7,582.44
  4. Step 4: Simplify right side
    13,869.12x = 145,133,133.48
  5. Step 5: Solve for x
    x = 145,133,133.48/13,869.12
  6. Step 6: Final answer
    x = 10,464.48

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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.