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Finding the Fourth Proportional to 11,888.90, 17,833.34 and 4,869.03

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Solution

The fourth proportional to 11,888.90, 17,833.34 and 4,869.03 is: 7,303.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,888.90 : 17,833.34 = 4,869.03 : x
  2. Step 2: Convert to fraction form
    11,888.90/17,833.34 = 4,869.03/x
  3. Step 3: Cross multiply
    11,888.90x = 17,833.34 × 4,869.03
  4. Step 4: Simplify right side
    11,888.90x = 86,831,079.63
  5. Step 5: Solve for x
    x = 86,831,079.63/11,888.90
  6. Step 6: Final answer
    x = 7,303.55

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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.