Home / 13,854.84-20,784.31-5,089.07

Finding the Fourth Proportional to 13,854.84, 20,784.31 and 5,089.07

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Solution

The fourth proportional to 13,854.84, 20,784.31 and 5,089.07 is: 7,634.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,854.84 : 20,784.31 = 5,089.07 : x
  2. Step 2: Convert to fraction form
    13,854.84/20,784.31 = 5,089.07/x
  3. Step 3: Cross multiply
    13,854.84x = 20,784.31 × 5,089.07
  4. Step 4: Simplify right side
    13,854.84x = 105,772,730.82
  5. Step 5: Solve for x
    x = 105,772,730.82/13,854.84
  6. Step 6: Final answer
    x = 7,634.35

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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.