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Finding the Fourth Proportional to 8,587.90, 11,852.40 and 5,051.44

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Solution

The fourth proportional to 8,587.90, 11,852.40 and 5,051.44 is: 6,971.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,587.90 : 11,852.40 = 5,051.44 : x
  2. Step 2: Convert to fraction form
    8,587.90/11,852.40 = 5,051.44/x
  3. Step 3: Cross multiply
    8,587.90x = 11,852.40 × 5,051.44
  4. Step 4: Simplify right side
    8,587.90x = 59,871,687.46
  5. Step 5: Solve for x
    x = 59,871,687.46/8,587.90
  6. Step 6: Final answer
    x = 6,971.63

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.